209899360

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:764

約数の個数: 96

約数和(自身を含む): 544320000

約数和(自身を除く): 334420640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 239, 352, 440, 478, 499, 880, 956, 998, 1195, 1760, 1912, 1996, 2390, 2495, 2629, 3824, 3992, 4780, 4990, 5258, 5489, 7648, 7984, 9560, 9980, 10516, 10978, 13145, 15968, 19120, 19960, 21032, 21956, 26290, 27445, 38240, 39920, 42064, 43912, 52580, 54890, 79840, 84128, 87824, 105160, 109780, 119261, 175648, 210320, 219560, 238522, 420640, 439120, 477044, 596305, 878240, 954088, 1192610, 1311871, 1908176, 2385220, 2623742, 3816352, 4770440, 5247484, 6559355, 9540880, 10494968, 13118710, 19081760, 20989936, 26237420, 41979872, 52474840, 104949680, 209899360]

約数ペア:

[(1, 209899360), (2, 104949680), (4, 52474840), (5, 41979872), (8, 26237420), (10, 20989936), (11, 19081760), (16, 13118710), (20, 10494968), (22, 9540880), (32, 6559355), (40, 5247484), (44, 4770440), (55, 3816352), (80, 2623742), (88, 2385220), (110, 1908176), (160, 1311871), (176, 1192610), (220, 954088), (239, 878240), (352, 596305), (440, 477044), (478, 439120), (499, 420640), (880, 238522), (956, 219560), (998, 210320), (1195, 175648), (1760, 119261), (1912, 109780), (1996, 105160), (2390, 87824), (2495, 84128), (2629, 79840), (3824, 54890), (3992, 52580), (4780, 43912), (4990, 42064), (5258, 39920), (5489, 38240), (7648, 27445), (7984, 26290), (9560, 21956), (9980, 21032), (10516, 19960), (10978, 19120), (13145, 15968)]