87274220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20879}}^1$

素因数の和:20918

約数の個数: 48

約数和(自身を含む): 210470400

約数和(自身を除く): 123196180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 20879, 41758, 83516, 104395, 208790, 229669, 396701, 417580, 459338, 793402, 918676, 1148345, 1586804, 1983505, 2296690, 3967010, 4363711, 4593380, 7934020, 8727422, 17454844, 21818555, 43637110, 87274220]

約数ペア:

[(1, 87274220), (2, 43637110), (4, 21818555), (5, 17454844), (10, 8727422), (11, 7934020), (19, 4593380), (20, 4363711), (22, 3967010), (38, 2296690), (44, 1983505), (55, 1586804), (76, 1148345), (95, 918676), (110, 793402), (190, 459338), (209, 417580), (220, 396701), (380, 229669), (418, 208790), (836, 104395), (1045, 83516), (2090, 41758), (4180, 20879)]