25578860

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 55792800

約数和(自身を除く): 30213940

約数列:

[1, 2, 4, 5, 10, 20, 53, 59, 106, 118, 212, 236, 265, 295, 409, 530, 590, 818, 1060, 1180, 1636, 2045, 3127, 4090, 6254, 8180, 12508, 15635, 21677, 24131, 31270, 43354, 48262, 62540, 86708, 96524, 108385, 120655, 216770, 241310, 433540, 482620, 1278943, 2557886, 5115772, 6394715, 12789430, 25578860]

約数ペア:

[(1, 25578860), (2, 12789430), (4, 6394715), (5, 5115772), (10, 2557886), (20, 1278943), (53, 482620), (59, 433540), (106, 241310), (118, 216770), (212, 120655), (236, 108385), (265, 96524), (295, 86708), (409, 62540), (530, 48262), (590, 43354), (818, 31270), (1060, 24131), (1180, 21677), (1636, 15635), (2045, 12508), (3127, 8180), (4090, 6254)]