13223750

素因数分解:

$2^1\times 5^4\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:242

約数の個数: 40

約数和(自身を含む): 25304400

約数和(自身を除く): 12080650

約数列:

[1, 2, 5, 10, 25, 50, 71, 125, 142, 149, 250, 298, 355, 625, 710, 745, 1250, 1490, 1775, 3550, 3725, 7450, 8875, 10579, 17750, 18625, 21158, 37250, 44375, 52895, 88750, 93125, 105790, 186250, 264475, 528950, 1322375, 2644750, 6611875, 13223750]

約数ペア:

[(1, 13223750), (2, 6611875), (5, 2644750), (10, 1322375), (25, 528950), (50, 264475), (71, 186250), (125, 105790), (142, 93125), (149, 88750), (250, 52895), (298, 44375), (355, 37250), (625, 21158), (710, 18625), (745, 17750), (1250, 10579), (1490, 8875), (1775, 7450), (3550, 3725)]