28701855

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 96

約数和(自身を含む): 63038976

約数和(自身を除く): 34337121

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 43, 45, 63, 65, 91, 105, 117, 129, 163, 195, 215, 273, 301, 315, 387, 455, 489, 559, 585, 645, 815, 819, 903, 1141, 1365, 1467, 1505, 1677, 1935, 2119, 2445, 2709, 2795, 3423, 3913, 4095, 4515, 5031, 5705, 6357, 7009, 7335, 8385, 10269, 10595, 11739, 13545, 14833, 17115, 19071, 19565, 21027, 25155, 31785, 35045, 35217, 44499, 49063, 51345, 58695, 63081, 74165, 91117, 95355, 105135, 133497, 147189, 176085, 222495, 245315, 273351, 315405, 441567, 455585, 637819, 667485, 735945, 820053, 1366755, 1913457, 2207835, 3189095, 4100265, 5740371, 9567285, 28701855]

約数ペア:

[(1, 28701855), (3, 9567285), (5, 5740371), (7, 4100265), (9, 3189095), (13, 2207835), (15, 1913457), (21, 1366755), (35, 820053), (39, 735945), (43, 667485), (45, 637819), (63, 455585), (65, 441567), (91, 315405), (105, 273351), (117, 245315), (129, 222495), (163, 176085), (195, 147189), (215, 133497), (273, 105135), (301, 95355), (315, 91117), (387, 74165), (455, 63081), (489, 58695), (559, 51345), (585, 49063), (645, 44499), (815, 35217), (819, 35045), (903, 31785), (1141, 25155), (1365, 21027), (1467, 19565), (1505, 19071), (1677, 17115), (1935, 14833), (2119, 13545), (2445, 11739), (2709, 10595), (2795, 10269), (3423, 8385), (3913, 7335), (4095, 7009), (4515, 6357), (5031, 5705)]