51691250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{3181}}^1$

素因数の和:3216

約数の個数: 40

約数和(自身を含む): 104375964

約数和(自身を除く): 52684714

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3181, 3250, 6362, 8125, 15905, 16250, 31810, 41353, 79525, 82706, 159050, 206765, 397625, 413530, 795250, 1033825, 1988125, 2067650, 3976250, 5169125, 10338250, 25845625, 51691250]

約数ペア:

[(1, 51691250), (2, 25845625), (5, 10338250), (10, 5169125), (13, 3976250), (25, 2067650), (26, 1988125), (50, 1033825), (65, 795250), (125, 413530), (130, 397625), (250, 206765), (325, 159050), (625, 82706), (650, 79525), (1250, 41353), (1625, 31810), (3181, 16250), (3250, 15905), (6362, 8125)]