20136458640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{121421}}^1$

素因数の和:122128

約数の個数: 80

約数和(自身を含む): 62513873856

約数和(自身を除く): 42377415216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 691, 1382, 2073, 2764, 3455, 4146, 5528, 6910, 8292, 10365, 11056, 13820, 16584, 20730, 27640, 33168, 41460, 55280, 82920, 121421, 165840, 242842, 364263, 485684, 607105, 728526, 971368, 1214210, 1457052, 1821315, 1942736, 2428420, 2914104, 3642630, 4856840, 5828208, 7285260, 9713680, 14570520, 29141040, 83901911, 167803822, 251705733, 335607644, 419509555, 503411466, 671215288, 839019110, 1006822932, 1258528665, 1342430576, 1678038220, 2013645864, 2517057330, 3356076440, 4027291728, 5034114660, 6712152880, 10068229320, 20136458640]

約数ペア:

[(1, 20136458640), (2, 10068229320), (3, 6712152880), (4, 5034114660), (5, 4027291728), (6, 3356076440), (8, 2517057330), (10, 2013645864), (12, 1678038220), (15, 1342430576), (16, 1258528665), (20, 1006822932), (24, 839019110), (30, 671215288), (40, 503411466), (48, 419509555), (60, 335607644), (80, 251705733), (120, 167803822), (240, 83901911), (691, 29141040), (1382, 14570520), (2073, 9713680), (2764, 7285260), (3455, 5828208), (4146, 4856840), (5528, 3642630), (6910, 2914104), (8292, 2428420), (10365, 1942736), (11056, 1821315), (13820, 1457052), (16584, 1214210), (20730, 971368), (27640, 728526), (33168, 607105), (41460, 485684), (55280, 364263), (82920, 242842), (121421, 165840)]