81851640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:837

約数の個数: 128

約数和(自身を含む): 268531200

約数和(自身を除く): 186679560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 71, 78, 104, 120, 130, 142, 156, 195, 213, 260, 284, 312, 355, 390, 426, 520, 568, 710, 739, 780, 852, 923, 1065, 1420, 1478, 1560, 1704, 1846, 2130, 2217, 2769, 2840, 2956, 3692, 3695, 4260, 4434, 4615, 5538, 5912, 7384, 7390, 8520, 8868, 9230, 9607, 11076, 11085, 13845, 14780, 17736, 18460, 19214, 22152, 22170, 27690, 28821, 29560, 36920, 38428, 44340, 48035, 52469, 55380, 57642, 76856, 88680, 96070, 104938, 110760, 115284, 144105, 157407, 192140, 209876, 230568, 262345, 288210, 314814, 384280, 419752, 524690, 576420, 629628, 682097, 787035, 1049380, 1152840, 1259256, 1364194, 1574070, 2046291, 2098760, 2728388, 3148140, 3410485, 4092582, 5456776, 6296280, 6820970, 8185164, 10231455, 13641940, 16370328, 20462910, 27283880, 40925820, 81851640]

約数ペア:

[(1, 81851640), (2, 40925820), (3, 27283880), (4, 20462910), (5, 16370328), (6, 13641940), (8, 10231455), (10, 8185164), (12, 6820970), (13, 6296280), (15, 5456776), (20, 4092582), (24, 3410485), (26, 3148140), (30, 2728388), (39, 2098760), (40, 2046291), (52, 1574070), (60, 1364194), (65, 1259256), (71, 1152840), (78, 1049380), (104, 787035), (120, 682097), (130, 629628), (142, 576420), (156, 524690), (195, 419752), (213, 384280), (260, 314814), (284, 288210), (312, 262345), (355, 230568), (390, 209876), (426, 192140), (520, 157407), (568, 144105), (710, 115284), (739, 110760), (780, 104938), (852, 96070), (923, 88680), (1065, 76856), (1420, 57642), (1478, 55380), (1560, 52469), (1704, 48035), (1846, 44340), (2130, 38428), (2217, 36920), (2769, 29560), (2840, 28821), (2956, 27690), (3692, 22170), (3695, 22152), (4260, 19214), (4434, 18460), (4615, 17736), (5538, 14780), (5912, 13845), (7384, 11085), (7390, 11076), (8520, 9607), (8868, 9230)]