28487368

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 38040632

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 109, 182, 218, 359, 364, 436, 718, 728, 763, 872, 1417, 1436, 1526, 2513, 2834, 2872, 3052, 4667, 5026, 5668, 6104, 9334, 9919, 10052, 11336, 18668, 19838, 20104, 32669, 37336, 39131, 39676, 65338, 78262, 79352, 130676, 156524, 261352, 273917, 313048, 508703, 547834, 1017406, 1095668, 2034812, 2191336, 3560921, 4069624, 7121842, 14243684, 28487368]

約数ペア:

[(1, 28487368), (2, 14243684), (4, 7121842), (7, 4069624), (8, 3560921), (13, 2191336), (14, 2034812), (26, 1095668), (28, 1017406), (52, 547834), (56, 508703), (91, 313048), (104, 273917), (109, 261352), (182, 156524), (218, 130676), (359, 79352), (364, 78262), (436, 65338), (718, 39676), (728, 39131), (763, 37336), (872, 32669), (1417, 20104), (1436, 19838), (1526, 18668), (2513, 11336), (2834, 10052), (2872, 9919), (3052, 9334), (4667, 6104), (5026, 5668)]