31139890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 57853440

約数和(自身を除く): 26713550

約数列:

[1, 2, 5, 10, 61, 71, 122, 142, 305, 355, 610, 710, 719, 1438, 3595, 4331, 7190, 8662, 21655, 43310, 43859, 51049, 87718, 102098, 219295, 255245, 438590, 510490, 3113989, 6227978, 15569945, 31139890]

約数ペア:

[(1, 31139890), (2, 15569945), (5, 6227978), (10, 3113989), (61, 510490), (71, 438590), (122, 255245), (142, 219295), (305, 102098), (355, 87718), (610, 51049), (710, 43859), (719, 43310), (1438, 21655), (3595, 8662), (4331, 7190)]