20710360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{389}}^1$

素因数の和:433

約数の個数: 64

約数和(自身を含む): 51386400

約数和(自身を除く): 30676040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 389, 440, 484, 605, 778, 968, 1210, 1331, 1556, 1945, 2420, 2662, 3112, 3890, 4279, 4840, 5324, 6655, 7780, 8558, 10648, 13310, 15560, 17116, 21395, 26620, 34232, 42790, 47069, 53240, 85580, 94138, 171160, 188276, 235345, 376552, 470690, 517759, 941380, 1035518, 1882760, 2071036, 2588795, 4142072, 5177590, 10355180, 20710360]

約数ペア:

[(1, 20710360), (2, 10355180), (4, 5177590), (5, 4142072), (8, 2588795), (10, 2071036), (11, 1882760), (20, 1035518), (22, 941380), (40, 517759), (44, 470690), (55, 376552), (88, 235345), (110, 188276), (121, 171160), (220, 94138), (242, 85580), (389, 53240), (440, 47069), (484, 42790), (605, 34232), (778, 26620), (968, 21395), (1210, 17116), (1331, 15560), (1556, 13310), (1945, 10648), (2420, 8558), (2662, 7780), (3112, 6655), (3890, 5324), (4279, 4840)]