64972100

素因数分解:

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

素因数の和:9236

約数の個数: 36

約数和(自身を含む): 142990848

約数和(自身を除く): 78018748

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 7100, 9151, 18302, 36604, 45755, 91510, 183020, 228775, 457550, 649721, 915100, 1299442, 2598884, 3248605, 6497210, 12994420, 16243025, 32486050, 64972100]

約数ペア:

[(1, 64972100), (2, 32486050), (4, 16243025), (5, 12994420), (10, 6497210), (20, 3248605), (25, 2598884), (50, 1299442), (71, 915100), (100, 649721), (142, 457550), (284, 228775), (355, 183020), (710, 91510), (1420, 45755), (1775, 36604), (3550, 18302), (7100, 9151)]