1121800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 2678400

約数和(自身を除く): 1556600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 79, 100, 142, 158, 200, 284, 316, 355, 395, 568, 632, 710, 790, 1420, 1580, 1775, 1975, 2840, 3160, 3550, 3950, 5609, 7100, 7900, 11218, 14200, 15800, 22436, 28045, 44872, 56090, 112180, 140225, 224360, 280450, 560900, 1121800]

約数ペア:

[(1, 1121800), (2, 560900), (4, 280450), (5, 224360), (8, 140225), (10, 112180), (20, 56090), (25, 44872), (40, 28045), (50, 22436), (71, 15800), (79, 14200), (100, 11218), (142, 7900), (158, 7100), (200, 5609), (284, 3950), (316, 3550), (355, 3160), (395, 2840), (568, 1975), (632, 1775), (710, 1580), (790, 1420)]