291225580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 620333280

約数和(自身を除く): 329107700

約数列:

[1, 2, 4, 5, 10, 20, 157, 163, 314, 326, 569, 628, 652, 785, 815, 1138, 1570, 1630, 2276, 2845, 3140, 3260, 5690, 11380, 25591, 51182, 89333, 92747, 102364, 127955, 178666, 185494, 255910, 357332, 370988, 446665, 463735, 511820, 893330, 927470, 1786660, 1854940, 14561279, 29122558, 58245116, 72806395, 145612790, 291225580]

約数ペア:

[(1, 291225580), (2, 145612790), (4, 72806395), (5, 58245116), (10, 29122558), (20, 14561279), (157, 1854940), (163, 1786660), (314, 927470), (326, 893330), (569, 511820), (628, 463735), (652, 446665), (785, 370988), (815, 357332), (1138, 255910), (1570, 185494), (1630, 178666), (2276, 127955), (2845, 102364), (3140, 92747), (3260, 89333), (5690, 51182), (11380, 25591)]