90960940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9151}}^1$

素因数の和:9238

約数の個数: 48

約数和(自身を含む): 221405184

約数和(自身を除く): 130444244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9151, 9940, 18302, 36604, 45755, 64057, 91510, 128114, 183020, 256228, 320285, 640570, 649721, 1281140, 1299442, 2598884, 3248605, 4548047, 6497210, 9096094, 12994420, 18192188, 22740235, 45480470, 90960940]

約数ペア:

[(1, 90960940), (2, 45480470), (4, 22740235), (5, 18192188), (7, 12994420), (10, 9096094), (14, 6497210), (20, 4548047), (28, 3248605), (35, 2598884), (70, 1299442), (71, 1281140), (140, 649721), (142, 640570), (284, 320285), (355, 256228), (497, 183020), (710, 128114), (994, 91510), (1420, 64057), (1988, 45755), (2485, 36604), (4970, 18302), (9151, 9940)]