1887860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 4381776

約数和(自身を除く): 2493916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 137, 212, 260, 265, 274, 530, 548, 685, 689, 1060, 1370, 1378, 1781, 2740, 2756, 3445, 3562, 6890, 7124, 7261, 8905, 13780, 14522, 17810, 29044, 35620, 36305, 72610, 94393, 145220, 188786, 377572, 471965, 943930, 1887860]

約数ペア:

[(1, 1887860), (2, 943930), (4, 471965), (5, 377572), (10, 188786), (13, 145220), (20, 94393), (26, 72610), (52, 36305), (53, 35620), (65, 29044), (106, 17810), (130, 14522), (137, 13780), (212, 8905), (260, 7261), (265, 7124), (274, 6890), (530, 3562), (548, 3445), (685, 2756), (689, 2740), (1060, 1781), (1370, 1378)]