80619790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{419}}^1$

素因数の和:768

約数の個数: 32

約数和(自身を含む): 148055040

約数和(自身を除く): 67435250

約数列:

[1, 2, 5, 10, 71, 142, 271, 355, 419, 542, 710, 838, 1355, 2095, 2710, 4190, 19241, 29749, 38482, 59498, 96205, 113549, 148745, 192410, 227098, 297490, 567745, 1135490, 8061979, 16123958, 40309895, 80619790]

約数ペア:

[(1, 80619790), (2, 40309895), (5, 16123958), (10, 8061979), (71, 1135490), (142, 567745), (271, 297490), (355, 227098), (419, 192410), (542, 148745), (710, 113549), (838, 96205), (1355, 59498), (2095, 38482), (2710, 29749), (4190, 19241)]