257320728

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1163}}^1$

素因数の和:1621

約数の個数: 96

約数和(自身を含む): 798969600

約数和(自身を除く): 541648872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 439, 504, 878, 1163, 1317, 1756, 2326, 2634, 3073, 3489, 3512, 3951, 4652, 5268, 6146, 6978, 7902, 8141, 9219, 9304, 10467, 10536, 12292, 13956, 15804, 16282, 18438, 20934, 24423, 24584, 27657, 27912, 31608, 32564, 36876, 41868, 48846, 55314, 65128, 73269, 73752, 83736, 97692, 110628, 146538, 195384, 221256, 293076, 510557, 586152, 1021114, 1531671, 2042228, 3063342, 3573899, 4084456, 4595013, 6126684, 7147798, 9190026, 10721697, 12253368, 14295596, 18380052, 21443394, 28591192, 32165091, 36760104, 42886788, 64330182, 85773576, 128660364, 257320728]

約数ペア:

[(1, 257320728), (2, 128660364), (3, 85773576), (4, 64330182), (6, 42886788), (7, 36760104), (8, 32165091), (9, 28591192), (12, 21443394), (14, 18380052), (18, 14295596), (21, 12253368), (24, 10721697), (28, 9190026), (36, 7147798), (42, 6126684), (56, 4595013), (63, 4084456), (72, 3573899), (84, 3063342), (126, 2042228), (168, 1531671), (252, 1021114), (439, 586152), (504, 510557), (878, 293076), (1163, 221256), (1317, 195384), (1756, 146538), (2326, 110628), (2634, 97692), (3073, 83736), (3489, 73752), (3512, 73269), (3951, 65128), (4652, 55314), (5268, 48846), (6146, 41868), (6978, 36876), (7902, 32564), (8141, 31608), (9219, 27912), (9304, 27657), (10467, 24584), (10536, 24423), (12292, 20934), (13956, 18438), (15804, 16282)]