2990940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{631}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 8494080

約数和(自身を除く): 5503140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 631, 790, 948, 1185, 1262, 1580, 1893, 2370, 2524, 3155, 3786, 4740, 6310, 7572, 9465, 12620, 18930, 37860, 49849, 99698, 149547, 199396, 249245, 299094, 498490, 598188, 747735, 996980, 1495470, 2990940]

約数ペア:

[(1, 2990940), (2, 1495470), (3, 996980), (4, 747735), (5, 598188), (6, 498490), (10, 299094), (12, 249245), (15, 199396), (20, 149547), (30, 99698), (60, 49849), (79, 37860), (158, 18930), (237, 12620), (316, 9465), (395, 7572), (474, 6310), (631, 4740), (790, 3786), (948, 3155), (1185, 2524), (1262, 2370), (1580, 1893)]