28927420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 62558496

約数和(自身を除く): 33631076

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 131, 181, 244, 262, 305, 362, 524, 610, 655, 724, 905, 1220, 1310, 1810, 2620, 3620, 7991, 11041, 15982, 22082, 23711, 31964, 39955, 44164, 47422, 55205, 79910, 94844, 110410, 118555, 159820, 220820, 237110, 474220, 1446371, 2892742, 5785484, 7231855, 14463710, 28927420]

約数ペア:

[(1, 28927420), (2, 14463710), (4, 7231855), (5, 5785484), (10, 2892742), (20, 1446371), (61, 474220), (122, 237110), (131, 220820), (181, 159820), (244, 118555), (262, 110410), (305, 94844), (362, 79910), (524, 55205), (610, 47422), (655, 44164), (724, 39955), (905, 31964), (1220, 23711), (1310, 22082), (1810, 15982), (2620, 11041), (3620, 7991)]