13857220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{239}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 31610880

約数和(自身を除く): 17753660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 223, 239, 260, 446, 478, 892, 956, 1115, 1195, 2230, 2390, 2899, 3107, 4460, 4780, 5798, 6214, 11596, 12428, 14495, 15535, 28990, 31070, 53297, 57980, 62140, 106594, 213188, 266485, 532970, 692861, 1065940, 1385722, 2771444, 3464305, 6928610, 13857220]

約数ペア:

[(1, 13857220), (2, 6928610), (4, 3464305), (5, 2771444), (10, 1385722), (13, 1065940), (20, 692861), (26, 532970), (52, 266485), (65, 213188), (130, 106594), (223, 62140), (239, 57980), (260, 53297), (446, 31070), (478, 28990), (892, 15535), (956, 14495), (1115, 12428), (1195, 11596), (2230, 6214), (2390, 5798), (2899, 4780), (3107, 4460)]