81787680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:308

約数の個数: 288

約数和(自身を含む): 319488624

約数和(自身を除く): 237700944

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 32, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 96, 102, 104, 117, 120, 130, 136, 144, 153, 156, 160, 170, 180, 195, 204, 208, 221, 234, 240, 255, 257, 260, 272, 288, 306, 312, 340, 360, 390, 408, 416, 442, 468, 480, 510, 514, 520, 544, 585, 612, 624, 663, 680, 720, 765, 771, 780, 816, 884, 936, 1020, 1028, 1040, 1105, 1170, 1224, 1248, 1285, 1326, 1360, 1440, 1530, 1542, 1560, 1632, 1768, 1872, 1989, 2040, 2056, 2080, 2210, 2313, 2340, 2448, 2570, 2652, 2720, 3060, 3084, 3120, 3315, 3341, 3536, 3744, 3855, 3978, 4080, 4112, 4369, 4420, 4626, 4680, 4896, 5140, 5304, 6120, 6168, 6240, 6630, 6682, 7072, 7710, 7956, 8160, 8224, 8738, 8840, 9252, 9360, 9945, 10023, 10280, 10608, 11565, 12240, 12336, 13107, 13260, 13364, 15420, 15912, 16705, 17476, 17680, 18504, 18720, 19890, 20046, 20560, 21216, 21845, 23130, 24480, 24672, 26214, 26520, 26728, 30069, 30840, 31824, 33410, 34952, 35360, 37008, 39321, 39780, 40092, 41120, 43690, 46260, 50115, 52428, 53040, 53456, 56797, 60138, 61680, 63648, 65535, 66820, 69904, 74016, 78642, 79560, 80184, 87380, 92520, 100230, 104856, 106080, 106912, 113594, 120276, 123360, 131070, 133640, 139808, 150345, 157284, 159120, 160368, 170391, 174760, 185040, 196605, 200460, 209712, 227188, 240552, 262140, 267280, 283985, 300690, 314568, 318240, 320736, 340782, 349520, 370080, 393210, 400920, 419424, 454376, 481104, 511173, 524280, 534560, 567970, 601380, 629136, 681564, 699040, 786420, 801840, 851955, 908752, 962208, 1022346, 1048560, 1135940, 1202760, 1258272, 1363128, 1572840, 1603680, 1703910, 1817504, 2044692, 2097120, 2271880, 2405520, 2555865, 2726256, 3145680, 3407820, 4089384, 4543760, 4811040, 5111730, 5452512, 6291360, 6815640, 8178768, 9087520, 10223460, 13631280, 16357536, 20446920, 27262560, 40893840, 81787680]

約数ペア:

[(1, 81787680), (2, 40893840), (3, 27262560), (4, 20446920), (5, 16357536), (6, 13631280), (8, 10223460), (9, 9087520), (10, 8178768), (12, 6815640), (13, 6291360), (15, 5452512), (16, 5111730), (17, 4811040), (18, 4543760), (20, 4089384), (24, 3407820), (26, 3145680), (30, 2726256), (32, 2555865), (34, 2405520), (36, 2271880), (39, 2097120), (40, 2044692), (45, 1817504), (48, 1703910), (51, 1603680), (52, 1572840), (60, 1363128), (65, 1258272), (68, 1202760), (72, 1135940), (78, 1048560), (80, 1022346), (85, 962208), (90, 908752), (96, 851955), (102, 801840), (104, 786420), (117, 699040), (120, 681564), (130, 629136), (136, 601380), (144, 567970), (153, 534560), (156, 524280), (160, 511173), (170, 481104), (180, 454376), (195, 419424), (204, 400920), (208, 393210), (221, 370080), (234, 349520), (240, 340782), (255, 320736), (257, 318240), (260, 314568), (272, 300690), (288, 283985), (306, 267280), (312, 262140), (340, 240552), (360, 227188), (390, 209712), (408, 200460), (416, 196605), (442, 185040), (468, 174760), (480, 170391), (510, 160368), (514, 159120), (520, 157284), (544, 150345), (585, 139808), (612, 133640), (624, 131070), (663, 123360), (680, 120276), (720, 113594), (765, 106912), (771, 106080), (780, 104856), (816, 100230), (884, 92520), (936, 87380), (1020, 80184), (1028, 79560), (1040, 78642), (1105, 74016), (1170, 69904), (1224, 66820), (1248, 65535), (1285, 63648), (1326, 61680), (1360, 60138), (1440, 56797), (1530, 53456), (1542, 53040), (1560, 52428), (1632, 50115), (1768, 46260), (1872, 43690), (1989, 41120), (2040, 40092), (2056, 39780), (2080, 39321), (2210, 37008), (2313, 35360), (2340, 34952), (2448, 33410), (2570, 31824), (2652, 30840), (2720, 30069), (3060, 26728), (3084, 26520), (3120, 26214), (3315, 24672), (3341, 24480), (3536, 23130), (3744, 21845), (3855, 21216), (3978, 20560), (4080, 20046), (4112, 19890), (4369, 18720), (4420, 18504), (4626, 17680), (4680, 17476), (4896, 16705), (5140, 15912), (5304, 15420), (6120, 13364), (6168, 13260), (6240, 13107), (6630, 12336), (6682, 12240), (7072, 11565), (7710, 10608), (7956, 10280), (8160, 10023), (8224, 9945), (8738, 9360), (8840, 9252)]