28509760

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1$

素因数の和:152

約数の個数: 84

約数和(自身を含む): 70898004

約数和(自身を除く): 42388244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 53, 64, 80, 82, 106, 160, 164, 205, 212, 265, 320, 328, 410, 424, 530, 656, 820, 848, 1060, 1312, 1640, 1681, 1696, 2120, 2173, 2624, 3280, 3362, 3392, 4240, 4346, 6560, 6724, 8405, 8480, 8692, 10865, 13120, 13448, 16810, 16960, 17384, 21730, 26896, 33620, 34768, 43460, 53792, 67240, 69536, 86920, 89093, 107584, 134480, 139072, 173840, 178186, 268960, 347680, 356372, 445465, 537920, 695360, 712744, 890930, 1425488, 1781860, 2850976, 3563720, 5701952, 7127440, 14254880, 28509760]

約数ペア:

[(1, 28509760), (2, 14254880), (4, 7127440), (5, 5701952), (8, 3563720), (10, 2850976), (16, 1781860), (20, 1425488), (32, 890930), (40, 712744), (41, 695360), (53, 537920), (64, 445465), (80, 356372), (82, 347680), (106, 268960), (160, 178186), (164, 173840), (205, 139072), (212, 134480), (265, 107584), (320, 89093), (328, 86920), (410, 69536), (424, 67240), (530, 53792), (656, 43460), (820, 34768), (848, 33620), (1060, 26896), (1312, 21730), (1640, 17384), (1681, 16960), (1696, 16810), (2120, 13448), (2173, 13120), (2624, 10865), (3280, 8692), (3362, 8480), (3392, 8405), (4240, 6724), (4346, 6560)]