81304320

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:738

約数の個数: 144

約数和(自身を含む): 268434432

約数和(自身を除く): 187130112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 465, 480, 496, 620, 640, 683, 744, 768, 930, 960, 992, 1240, 1280, 1366, 1488, 1860, 1920, 1984, 2049, 2480, 2732, 2976, 3415, 3720, 3840, 3968, 4098, 4960, 5464, 5952, 6830, 7440, 7936, 8196, 9920, 10245, 10928, 11904, 13660, 14880, 16392, 19840, 20490, 21173, 21856, 23808, 27320, 29760, 32784, 39680, 40980, 42346, 43712, 54640, 59520, 63519, 65568, 81960, 84692, 87424, 105865, 109280, 119040, 127038, 131136, 163920, 169384, 174848, 211730, 218560, 254076, 262272, 317595, 327840, 338768, 423460, 437120, 508152, 524544, 635190, 655680, 677536, 846920, 874240, 1016304, 1270380, 1311360, 1355072, 1693840, 2032608, 2540760, 2622720, 2710144, 3387680, 4065216, 5081520, 5420288, 6775360, 8130432, 10163040, 13550720, 16260864, 20326080, 27101440, 40652160, 81304320]

約数ペア:

[(1, 81304320), (2, 40652160), (3, 27101440), (4, 20326080), (5, 16260864), (6, 13550720), (8, 10163040), (10, 8130432), (12, 6775360), (15, 5420288), (16, 5081520), (20, 4065216), (24, 3387680), (30, 2710144), (31, 2622720), (32, 2540760), (40, 2032608), (48, 1693840), (60, 1355072), (62, 1311360), (64, 1270380), (80, 1016304), (93, 874240), (96, 846920), (120, 677536), (124, 655680), (128, 635190), (155, 524544), (160, 508152), (186, 437120), (192, 423460), (240, 338768), (248, 327840), (256, 317595), (310, 262272), (320, 254076), (372, 218560), (384, 211730), (465, 174848), (480, 169384), (496, 163920), (620, 131136), (640, 127038), (683, 119040), (744, 109280), (768, 105865), (930, 87424), (960, 84692), (992, 81960), (1240, 65568), (1280, 63519), (1366, 59520), (1488, 54640), (1860, 43712), (1920, 42346), (1984, 40980), (2049, 39680), (2480, 32784), (2732, 29760), (2976, 27320), (3415, 23808), (3720, 21856), (3840, 21173), (3968, 20490), (4098, 19840), (4960, 16392), (5464, 14880), (5952, 13660), (6830, 11904), (7440, 10928), (7936, 10245), (8196, 9920)]