10981894820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2081}}^1\times {\mathrm{20297}}^1$

素因数の和:22400

約数の個数: 48

約数和(自身を含む): 24849136368

約数和(自身を除く): 13867241548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2081, 4162, 8324, 10405, 20297, 20810, 27053, 40594, 41620, 54106, 81188, 101485, 108212, 135265, 202970, 263861, 270530, 405940, 527722, 541060, 1055444, 1319305, 2638610, 5277220, 42238057, 84476114, 168952228, 211190285, 422380570, 549094741, 844761140, 1098189482, 2196378964, 2745473705, 5490947410, 10981894820]

約数ペア:

[(1, 10981894820), (2, 5490947410), (4, 2745473705), (5, 2196378964), (10, 1098189482), (13, 844761140), (20, 549094741), (26, 422380570), (52, 211190285), (65, 168952228), (130, 84476114), (260, 42238057), (2081, 5277220), (4162, 2638610), (8324, 1319305), (10405, 1055444), (20297, 541060), (20810, 527722), (27053, 405940), (40594, 270530), (41620, 263861), (54106, 202970), (81188, 135265), (101485, 108212)]