20160979420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{351359}}^1$

素因数の和:351538

約数の個数: 48

約数和(自身を含む): 44861644800

約数和(自身を除く): 24700665380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 151, 190, 302, 380, 604, 755, 1510, 2869, 3020, 5738, 11476, 14345, 28690, 57380, 351359, 702718, 1405436, 1756795, 3513590, 6675821, 7027180, 13351642, 26703284, 33379105, 53055209, 66758210, 106110418, 133516420, 212220836, 265276045, 530552090, 1008048971, 1061104180, 2016097942, 4032195884, 5040244855, 10080489710, 20160979420]

約数ペア:

[(1, 20160979420), (2, 10080489710), (4, 5040244855), (5, 4032195884), (10, 2016097942), (19, 1061104180), (20, 1008048971), (38, 530552090), (76, 265276045), (95, 212220836), (151, 133516420), (190, 106110418), (302, 66758210), (380, 53055209), (604, 33379105), (755, 26703284), (1510, 13351642), (2869, 7027180), (3020, 6675821), (5738, 3513590), (11476, 1756795), (14345, 1405436), (28690, 702718), (57380, 351359)]