68472820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4969}}^1$

素因数の和:5044

約数の個数: 48

約数和(自身を含む): 157807440

約数和(自身を除く): 89334620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 4969, 6890, 9938, 13780, 19876, 24845, 49690, 64597, 99380, 129194, 258388, 263357, 322985, 526714, 645970, 1053428, 1291940, 1316785, 2633570, 3423641, 5267140, 6847282, 13694564, 17118205, 34236410, 68472820]

約数ペア:

[(1, 68472820), (2, 34236410), (4, 17118205), (5, 13694564), (10, 6847282), (13, 5267140), (20, 3423641), (26, 2633570), (52, 1316785), (53, 1291940), (65, 1053428), (106, 645970), (130, 526714), (212, 322985), (260, 263357), (265, 258388), (530, 129194), (689, 99380), (1060, 64597), (1378, 49690), (2756, 24845), (3445, 19876), (4969, 13780), (6890, 9938)]