90297800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{6359}}^1$

素因数の和:6446

約数の個数: 48

約数和(自身を含む): 212932800

約数和(自身を除く): 122635000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1775, 2840, 3550, 6359, 7100, 12718, 14200, 25436, 31795, 50872, 63590, 127180, 158975, 254360, 317950, 451489, 635900, 902978, 1271800, 1805956, 2257445, 3611912, 4514890, 9029780, 11287225, 18059560, 22574450, 45148900, 90297800]

約数ペア:

[(1, 90297800), (2, 45148900), (4, 22574450), (5, 18059560), (8, 11287225), (10, 9029780), (20, 4514890), (25, 3611912), (40, 2257445), (50, 1805956), (71, 1271800), (100, 902978), (142, 635900), (200, 451489), (284, 317950), (355, 254360), (568, 158975), (710, 127180), (1420, 63590), (1775, 50872), (2840, 31795), (3550, 25436), (6359, 14200), (7100, 12718)]