25381405

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 36403200

約数和(自身を除く): 11021795

約数列:

[1, 5, 7, 31, 35, 149, 155, 157, 217, 745, 785, 1043, 1085, 1099, 4619, 4867, 5215, 5495, 23095, 23393, 24335, 32333, 34069, 116965, 161665, 163751, 170345, 725183, 818755, 3625915, 5076281, 25381405]

約数ペア:

[(1, 25381405), (5, 5076281), (7, 3625915), (31, 818755), (35, 725183), (149, 170345), (155, 163751), (157, 161665), (217, 116965), (745, 34069), (785, 32333), (1043, 24335), (1085, 23393), (1099, 23095), (4619, 5495), (4867, 5215)]