209534975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{4327}}^1$

素因数の和:4499

約数の個数: 24

約数和(自身を含む): 281752800

約数和(自身を除く): 72217825

約数列:

[1, 5, 13, 25, 65, 149, 325, 745, 1937, 3725, 4327, 9685, 21635, 48425, 56251, 108175, 281255, 644723, 1406275, 3223615, 8381399, 16118075, 41906995, 209534975]

約数ペア:

[(1, 209534975), (5, 41906995), (13, 16118075), (25, 8381399), (65, 3223615), (149, 1406275), (325, 644723), (745, 281255), (1937, 108175), (3725, 56251), (4327, 48425), (9685, 21635)]