19952274875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{3049}}^1\times {\mathrm{4027}}^1$

素因数の和:7104

約数の個数: 32

約数和(自身を含む): 26831313600

約数和(自身を除く): 6879038725

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 3049, 4027, 15245, 20135, 39637, 52351, 76225, 100675, 198185, 261755, 381125, 503375, 990925, 1308775, 4954625, 6543875, 12278323, 61391615, 159618199, 306958075, 798090995, 1534790375, 3990454975, 19952274875]

約数ペア:

[(1, 19952274875), (5, 3990454975), (13, 1534790375), (25, 798090995), (65, 306958075), (125, 159618199), (325, 61391615), (1625, 12278323), (3049, 6543875), (4027, 4954625), (15245, 1308775), (20135, 990925), (39637, 503375), (52351, 381125), (76225, 261755), (100675, 198185)]