215816075

素因数分解:

$5^2\times {\mathrm{163}}^1\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 271607616

約数和(自身を除く): 55791541

約数列:

[1, 5, 25, 163, 211, 251, 815, 1055, 1255, 4075, 5275, 6275, 34393, 40913, 52961, 171965, 204565, 264805, 859825, 1022825, 1324025, 8632643, 43163215, 215816075]

約数ペア:

[(1, 215816075), (5, 43163215), (25, 8632643), (163, 1324025), (211, 1022825), (251, 859825), (815, 264805), (1055, 204565), (1255, 171965), (4075, 52961), (5275, 40913), (6275, 34393)]