81259620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104179}}^1$

素因数の和:104204

約数の個数: 48

約数和(自身を含む): 245031360

約数和(自身を除く): 163771740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104179, 208358, 312537, 416716, 520895, 625074, 1041790, 1250148, 1354327, 1562685, 2083580, 2708654, 3125370, 4062981, 5417308, 6250740, 6771635, 8125962, 13543270, 16251924, 20314905, 27086540, 40629810, 81259620]

約数ペア:

[(1, 81259620), (2, 40629810), (3, 27086540), (4, 20314905), (5, 16251924), (6, 13543270), (10, 8125962), (12, 6771635), (13, 6250740), (15, 5417308), (20, 4062981), (26, 3125370), (30, 2708654), (39, 2083580), (52, 1562685), (60, 1354327), (65, 1250148), (78, 1041790), (130, 625074), (156, 520895), (195, 416716), (260, 312537), (390, 208358), (780, 104179)]