853659125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{1621}}^1$

素因数の和:2030

約数の個数: 32

約数和(自身を含む): 1165971456

約数和(自身を除く): 312312331

約数列:

[1, 5, 11, 25, 55, 125, 275, 383, 1375, 1621, 1915, 4213, 8105, 9575, 17831, 21065, 40525, 47875, 89155, 105325, 202625, 445775, 526625, 620843, 2228875, 3104215, 6829273, 15521075, 34146365, 77605375, 170731825, 853659125]

約数ペア:

[(1, 853659125), (5, 170731825), (11, 77605375), (25, 34146365), (55, 15521075), (125, 6829273), (275, 3104215), (383, 2228875), (1375, 620843), (1621, 526625), (1915, 445775), (4213, 202625), (8105, 105325), (9575, 89155), (17831, 47875), (21065, 40525)]