31430900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{10139}}^1$

素因数の和:10184

約数の個数: 36

約数和(自身を含む): 70412160

約数和(自身を除く): 38981260

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 10139, 20278, 40556, 50695, 101390, 202780, 253475, 314309, 506950, 628618, 1013900, 1257236, 1571545, 3143090, 6286180, 7857725, 15715450, 31430900]

約数ペア:

[(1, 31430900), (2, 15715450), (4, 7857725), (5, 6286180), (10, 3143090), (20, 1571545), (25, 1257236), (31, 1013900), (50, 628618), (62, 506950), (100, 314309), (124, 253475), (155, 202780), (310, 101390), (620, 50695), (775, 40556), (1550, 20278), (3100, 10139)]