1255450820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{12413}}^1$

素因数の和:12824

約数の個数: 48

約数和(自身を含む): 2846778480

約数和(自身を除く): 1591327660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 778, 1556, 1945, 3890, 5057, 7780, 10114, 12413, 20228, 24826, 25285, 49652, 50570, 62065, 101140, 124130, 161369, 248260, 322738, 645476, 806845, 1613690, 3227380, 4828657, 9657314, 19314628, 24143285, 48286570, 62772541, 96573140, 125545082, 251090164, 313862705, 627725410, 1255450820]

約数ペア:

[(1, 1255450820), (2, 627725410), (4, 313862705), (5, 251090164), (10, 125545082), (13, 96573140), (20, 62772541), (26, 48286570), (52, 24143285), (65, 19314628), (130, 9657314), (260, 4828657), (389, 3227380), (778, 1613690), (1556, 806845), (1945, 645476), (3890, 322738), (5057, 248260), (7780, 161369), (10114, 124130), (12413, 101140), (20228, 62065), (24826, 50570), (25285, 49652)]