81828480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 256

約数和(自身を含む): 290822400

約数和(自身を除く): 208993920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 32, 34, 40, 46, 48, 51, 60, 64, 68, 69, 80, 85, 92, 96, 102, 109, 115, 120, 128, 136, 138, 160, 170, 184, 192, 204, 218, 230, 240, 255, 272, 276, 320, 327, 340, 345, 368, 384, 391, 408, 436, 460, 480, 510, 544, 545, 552, 640, 654, 680, 690, 736, 782, 816, 872, 920, 960, 1020, 1088, 1090, 1104, 1173, 1308, 1360, 1380, 1472, 1564, 1632, 1635, 1744, 1840, 1853, 1920, 1955, 2040, 2176, 2180, 2208, 2346, 2507, 2616, 2720, 2760, 2944, 3128, 3264, 3270, 3488, 3680, 3706, 3910, 4080, 4360, 4416, 4692, 5014, 5232, 5440, 5520, 5559, 5865, 6256, 6528, 6540, 6976, 7360, 7412, 7521, 7820, 8160, 8720, 8832, 9265, 9384, 10028, 10464, 10880, 11040, 11118, 11730, 12512, 12535, 13080, 13952, 14720, 14824, 15042, 15640, 16320, 17440, 18530, 18768, 20056, 20928, 22080, 22236, 23460, 25024, 25070, 26160, 27795, 29648, 30084, 31280, 32640, 34880, 37060, 37536, 37605, 40112, 41856, 42619, 44160, 44472, 46920, 50048, 50140, 52320, 55590, 59296, 60168, 62560, 69760, 74120, 75072, 75210, 80224, 85238, 88944, 93840, 100280, 104640, 111180, 118592, 120336, 125120, 127857, 148240, 150144, 150420, 160448, 170476, 177888, 187680, 200560, 209280, 213095, 222360, 237184, 240672, 250240, 255714, 296480, 300840, 320896, 340952, 355776, 375360, 401120, 426190, 444720, 481344, 511428, 592960, 601680, 639285, 681904, 711552, 750720, 802240, 852380, 889440, 962688, 1022856, 1185920, 1203360, 1278570, 1363808, 1604480, 1704760, 1778880, 2045712, 2406720, 2557140, 2727616, 3409520, 3557760, 4091424, 4813440, 5114280, 5455232, 6819040, 8182848, 10228560, 13638080, 16365696, 20457120, 27276160, 40914240, 81828480]

約数ペア:

[(1, 81828480), (2, 40914240), (3, 27276160), (4, 20457120), (5, 16365696), (6, 13638080), (8, 10228560), (10, 8182848), (12, 6819040), (15, 5455232), (16, 5114280), (17, 4813440), (20, 4091424), (23, 3557760), (24, 3409520), (30, 2727616), (32, 2557140), (34, 2406720), (40, 2045712), (46, 1778880), (48, 1704760), (51, 1604480), (60, 1363808), (64, 1278570), (68, 1203360), (69, 1185920), (80, 1022856), (85, 962688), (92, 889440), (96, 852380), (102, 802240), (109, 750720), (115, 711552), (120, 681904), (128, 639285), (136, 601680), (138, 592960), (160, 511428), (170, 481344), (184, 444720), (192, 426190), (204, 401120), (218, 375360), (230, 355776), (240, 340952), (255, 320896), (272, 300840), (276, 296480), (320, 255714), (327, 250240), (340, 240672), (345, 237184), (368, 222360), (384, 213095), (391, 209280), (408, 200560), (436, 187680), (460, 177888), (480, 170476), (510, 160448), (544, 150420), (545, 150144), (552, 148240), (640, 127857), (654, 125120), (680, 120336), (690, 118592), (736, 111180), (782, 104640), (816, 100280), (872, 93840), (920, 88944), (960, 85238), (1020, 80224), (1088, 75210), (1090, 75072), (1104, 74120), (1173, 69760), (1308, 62560), (1360, 60168), (1380, 59296), (1472, 55590), (1564, 52320), (1632, 50140), (1635, 50048), (1744, 46920), (1840, 44472), (1853, 44160), (1920, 42619), (1955, 41856), (2040, 40112), (2176, 37605), (2180, 37536), (2208, 37060), (2346, 34880), (2507, 32640), (2616, 31280), (2720, 30084), (2760, 29648), (2944, 27795), (3128, 26160), (3264, 25070), (3270, 25024), (3488, 23460), (3680, 22236), (3706, 22080), (3910, 20928), (4080, 20056), (4360, 18768), (4416, 18530), (4692, 17440), (5014, 16320), (5232, 15640), (5440, 15042), (5520, 14824), (5559, 14720), (5865, 13952), (6256, 13080), (6528, 12535), (6540, 12512), (6976, 11730), (7360, 11118), (7412, 11040), (7521, 10880), (7820, 10464), (8160, 10028), (8720, 9384), (8832, 9265)]