201551120

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{31891}}^1$

素因数の和:31983

約数の個数: 40

約数和(自身を含む): 474552960

約数和(自身を除く): 273001840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 31891, 63782, 127564, 159455, 255128, 318910, 510256, 637820, 1275640, 2519389, 2551280, 5038778, 10077556, 12596945, 20155112, 25193890, 40310224, 50387780, 100775560, 201551120]

約数ペア:

[(1, 201551120), (2, 100775560), (4, 50387780), (5, 40310224), (8, 25193890), (10, 20155112), (16, 12596945), (20, 10077556), (40, 5038778), (79, 2551280), (80, 2519389), (158, 1275640), (316, 637820), (395, 510256), (632, 318910), (790, 255128), (1264, 159455), (1580, 127564), (3160, 63782), (6320, 31891)]