20268456

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{389}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 55036800

約数和(自身を除く): 34768344

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 167, 312, 334, 389, 501, 668, 778, 1002, 1167, 1336, 1556, 2004, 2171, 2334, 3112, 4008, 4342, 4668, 5057, 6513, 8684, 9336, 10114, 13026, 15171, 17368, 20228, 26052, 30342, 40456, 52104, 60684, 64963, 121368, 129926, 194889, 259852, 389778, 519704, 779556, 844519, 1559112, 1689038, 2533557, 3378076, 5067114, 6756152, 10134228, 20268456]

約数ペア:

[(1, 20268456), (2, 10134228), (3, 6756152), (4, 5067114), (6, 3378076), (8, 2533557), (12, 1689038), (13, 1559112), (24, 844519), (26, 779556), (39, 519704), (52, 389778), (78, 259852), (104, 194889), (156, 129926), (167, 121368), (312, 64963), (334, 60684), (389, 52104), (501, 40456), (668, 30342), (778, 26052), (1002, 20228), (1167, 17368), (1336, 15171), (1556, 13026), (2004, 10114), (2171, 9336), (2334, 8684), (3112, 6513), (4008, 5057), (4342, 4668)]