81552120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:945

約数の個数: 128

約数和(自身を含む): 268107840

約数和(自身を除く): 186555720

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, 857, 915, 1220, 1464, 1560, 1586, 1714, 1830, 2379, 2440, 2571, 3172, 3428, 3660, 3965, 4285, 4758, 5142, 6344, 6856, 7320, 7930, 8570, 9516, 10284, 11141, 11895, 12855, 15860, 17140, 19032, 20568, 22282, 23790, 25710, 31720, 33423, 34280, 44564, 47580, 51420, 52277, 55705, 66846, 89128, 95160, 102840, 104554, 111410, 133692, 156831, 167115, 209108, 222820, 261385, 267384, 313662, 334230, 418216, 445640, 522770, 627324, 668460, 679601, 784155, 1045540, 1254648, 1336920, 1359202, 1568310, 2038803, 2091080, 2718404, 3136620, 3398005, 4077606, 5436808, 6273240, 6796010, 8155212, 10194015, 13592020, 16310424, 20388030, 27184040, 40776060, 81552120]

約数ペア:

[(1, 81552120), (2, 40776060), (3, 27184040), (4, 20388030), (5, 16310424), (6, 13592020), (8, 10194015), (10, 8155212), (12, 6796010), (13, 6273240), (15, 5436808), (20, 4077606), (24, 3398005), (26, 3136620), (30, 2718404), (39, 2091080), (40, 2038803), (52, 1568310), (60, 1359202), (61, 1336920), (65, 1254648), (78, 1045540), (104, 784155), (120, 679601), (122, 668460), (130, 627324), (156, 522770), (183, 445640), (195, 418216), (244, 334230), (260, 313662), (305, 267384), (312, 261385), (366, 222820), (390, 209108), (488, 167115), (520, 156831), (610, 133692), (732, 111410), (780, 104554), (793, 102840), (857, 95160), (915, 89128), (1220, 66846), (1464, 55705), (1560, 52277), (1586, 51420), (1714, 47580), (1830, 44564), (2379, 34280), (2440, 33423), (2571, 31720), (3172, 25710), (3428, 23790), (3660, 22282), (3965, 20568), (4285, 19032), (4758, 17140), (5142, 15860), (6344, 12855), (6856, 11895), (7320, 11141), (7930, 10284), (8570, 9516)]