87242820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{207721}}^1$

素因数の和:207740

約数の個数: 48

約数和(自身を含む): 279178368

約数和(自身を除く): 191935548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 207721, 415442, 623163, 830884, 1038605, 1246326, 1454047, 2077210, 2492652, 2908094, 3115815, 4154420, 4362141, 5816188, 6231630, 7270235, 8724282, 12463260, 14540470, 17448564, 21810705, 29080940, 43621410, 87242820]

約数ペア:

[(1, 87242820), (2, 43621410), (3, 29080940), (4, 21810705), (5, 17448564), (6, 14540470), (7, 12463260), (10, 8724282), (12, 7270235), (14, 6231630), (15, 5816188), (20, 4362141), (21, 4154420), (28, 3115815), (30, 2908094), (35, 2492652), (42, 2077210), (60, 1454047), (70, 1246326), (84, 1038605), (105, 830884), (140, 623163), (210, 415442), (420, 207721)]