81799380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2689}}^1$

素因数の和:2730

約数の個数: 108

約数和(自身を含む): 268779420

約数和(自身を除く): 186980040

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 676, 780, 845, 1014, 1170, 1521, 1690, 2028, 2340, 2535, 2689, 3042, 3380, 5070, 5378, 6084, 7605, 8067, 10140, 10756, 13445, 15210, 16134, 24201, 26890, 30420, 32268, 34957, 40335, 48402, 53780, 69914, 80670, 96804, 104871, 121005, 139828, 161340, 174785, 209742, 242010, 314613, 349570, 419484, 454441, 484020, 524355, 629226, 699140, 908882, 1048710, 1258452, 1363323, 1573065, 1817764, 2097420, 2272205, 2726646, 3146130, 4089969, 4544410, 5453292, 6292260, 6816615, 8179938, 9088820, 13633230, 16359876, 20449845, 27266460, 40899690, 81799380]

約数ペア:

[(1, 81799380), (2, 40899690), (3, 27266460), (4, 20449845), (5, 16359876), (6, 13633230), (9, 9088820), (10, 8179938), (12, 6816615), (13, 6292260), (15, 5453292), (18, 4544410), (20, 4089969), (26, 3146130), (30, 2726646), (36, 2272205), (39, 2097420), (45, 1817764), (52, 1573065), (60, 1363323), (65, 1258452), (78, 1048710), (90, 908882), (117, 699140), (130, 629226), (156, 524355), (169, 484020), (180, 454441), (195, 419484), (234, 349570), (260, 314613), (338, 242010), (390, 209742), (468, 174785), (507, 161340), (585, 139828), (676, 121005), (780, 104871), (845, 96804), (1014, 80670), (1170, 69914), (1521, 53780), (1690, 48402), (2028, 40335), (2340, 34957), (2535, 32268), (2689, 30420), (3042, 26890), (3380, 24201), (5070, 16134), (5378, 15210), (6084, 13445), (7605, 10756), (8067, 10140)]