12888760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 30844800

約数和(自身を除く): 17956040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 41, 58, 82, 116, 145, 164, 205, 232, 271, 290, 328, 410, 542, 580, 820, 1084, 1160, 1189, 1355, 1640, 2168, 2378, 2710, 4756, 5420, 5945, 7859, 9512, 10840, 11111, 11890, 15718, 22222, 23780, 31436, 39295, 44444, 47560, 55555, 62872, 78590, 88888, 111110, 157180, 222220, 314360, 322219, 444440, 644438, 1288876, 1611095, 2577752, 3222190, 6444380, 12888760]

約数ペア:

[(1, 12888760), (2, 6444380), (4, 3222190), (5, 2577752), (8, 1611095), (10, 1288876), (20, 644438), (29, 444440), (40, 322219), (41, 314360), (58, 222220), (82, 157180), (116, 111110), (145, 88888), (164, 78590), (205, 62872), (232, 55555), (271, 47560), (290, 44444), (328, 39295), (410, 31436), (542, 23780), (580, 22222), (820, 15718), (1084, 11890), (1160, 11111), (1189, 10840), (1355, 9512), (1640, 7859), (2168, 5945), (2378, 5420), (2710, 4756)]