81742440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:947

約数の個数: 128

約数和(自身を含む): 268732800

約数和(自身を除く): 186990360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 61, 65, 78, 104, 120, 122, 130, 156, 183, 195, 244, 260, 305, 312, 366, 390, 488, 520, 610, 732, 780, 793, 859, 915, 1220, 1464, 1560, 1586, 1718, 1830, 2379, 2440, 2577, 3172, 3436, 3660, 3965, 4295, 4758, 5154, 6344, 6872, 7320, 7930, 8590, 9516, 10308, 11167, 11895, 12885, 15860, 17180, 19032, 20616, 22334, 23790, 25770, 31720, 33501, 34360, 44668, 47580, 51540, 52399, 55835, 67002, 89336, 95160, 103080, 104798, 111670, 134004, 157197, 167505, 209596, 223340, 261995, 268008, 314394, 335010, 419192, 446680, 523990, 628788, 670020, 681187, 785985, 1047980, 1257576, 1340040, 1362374, 1571970, 2043561, 2095960, 2724748, 3143940, 3405935, 4087122, 5449496, 6287880, 6811870, 8174244, 10217805, 13623740, 16348488, 20435610, 27247480, 40871220, 81742440]

約数ペア:

[(1, 81742440), (2, 40871220), (3, 27247480), (4, 20435610), (5, 16348488), (6, 13623740), (8, 10217805), (10, 8174244), (12, 6811870), (13, 6287880), (15, 5449496), (20, 4087122), (24, 3405935), (26, 3143940), (30, 2724748), (39, 2095960), (40, 2043561), (52, 1571970), (60, 1362374), (61, 1340040), (65, 1257576), (78, 1047980), (104, 785985), (120, 681187), (122, 670020), (130, 628788), (156, 523990), (183, 446680), (195, 419192), (244, 335010), (260, 314394), (305, 268008), (312, 261995), (366, 223340), (390, 209596), (488, 167505), (520, 157197), (610, 134004), (732, 111670), (780, 104798), (793, 103080), (859, 95160), (915, 89336), (1220, 67002), (1464, 55835), (1560, 52399), (1586, 51540), (1718, 47580), (1830, 44668), (2379, 34360), (2440, 33501), (2577, 31720), (3172, 25770), (3436, 23790), (3660, 22334), (3965, 20616), (4295, 19032), (4758, 17180), (5154, 15860), (6344, 12885), (6872, 11895), (7320, 11167), (7930, 10308), (8590, 9516)]