1557140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 3619728

約数和(自身を除く): 2062588

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 113, 130, 212, 226, 260, 265, 452, 530, 565, 689, 1060, 1130, 1378, 1469, 2260, 2756, 2938, 3445, 5876, 5989, 6890, 7345, 11978, 13780, 14690, 23956, 29380, 29945, 59890, 77857, 119780, 155714, 311428, 389285, 778570, 1557140]

約数ペア:

[(1, 1557140), (2, 778570), (4, 389285), (5, 311428), (10, 155714), (13, 119780), (20, 77857), (26, 59890), (52, 29945), (53, 29380), (65, 23956), (106, 14690), (113, 13780), (130, 11978), (212, 7345), (226, 6890), (260, 5989), (265, 5876), (452, 3445), (530, 2938), (565, 2756), (689, 2260), (1060, 1469), (1130, 1378)]