79777580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1409}}^1$

素因数の和:1586

約数の個数: 48

約数和(自身を含む): 177660000

約数和(自身を除く): 97882420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 298, 380, 596, 745, 1409, 1490, 2818, 2831, 2980, 5636, 5662, 7045, 11324, 14090, 14155, 26771, 28180, 28310, 53542, 56620, 107084, 133855, 209941, 267710, 419882, 535420, 839764, 1049705, 2099410, 3988879, 4198820, 7977758, 15955516, 19944395, 39888790, 79777580]

約数ペア:

[(1, 79777580), (2, 39888790), (4, 19944395), (5, 15955516), (10, 7977758), (19, 4198820), (20, 3988879), (38, 2099410), (76, 1049705), (95, 839764), (149, 535420), (190, 419882), (298, 267710), (380, 209941), (596, 133855), (745, 107084), (1409, 56620), (1490, 53542), (2818, 28310), (2831, 28180), (2980, 26771), (5636, 14155), (5662, 14090), (7045, 11324)]