80950820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 176070720

約数和(自身を除く): 95119900

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 139, 148, 185, 278, 370, 556, 695, 740, 787, 1390, 1574, 2780, 3148, 3935, 5143, 7870, 10286, 15740, 20572, 25715, 29119, 51430, 58238, 102860, 109393, 116476, 145595, 218786, 291190, 437572, 546965, 582380, 1093930, 2187860, 4047541, 8095082, 16190164, 20237705, 40475410, 80950820]

約数ペア:

[(1, 80950820), (2, 40475410), (4, 20237705), (5, 16190164), (10, 8095082), (20, 4047541), (37, 2187860), (74, 1093930), (139, 582380), (148, 546965), (185, 437572), (278, 291190), (370, 218786), (556, 145595), (695, 116476), (740, 109393), (787, 102860), (1390, 58238), (1574, 51430), (2780, 29119), (3148, 25715), (3935, 20572), (5143, 15740), (7870, 10286)]