80681640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51719}}^1$

素因数の和:51746

約数の個数: 64

約数和(自身を含む): 260668800

約数和(自身を除く): 179987160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 51719, 103438, 155157, 206876, 258595, 310314, 413752, 517190, 620628, 672347, 775785, 1034380, 1241256, 1344694, 1551570, 2017041, 2068760, 2689388, 3103140, 3361735, 4034082, 5378776, 6206280, 6723470, 8068164, 10085205, 13446940, 16136328, 20170410, 26893880, 40340820, 80681640]

約数ペア:

[(1, 80681640), (2, 40340820), (3, 26893880), (4, 20170410), (5, 16136328), (6, 13446940), (8, 10085205), (10, 8068164), (12, 6723470), (13, 6206280), (15, 5378776), (20, 4034082), (24, 3361735), (26, 3103140), (30, 2689388), (39, 2068760), (40, 2017041), (52, 1551570), (60, 1344694), (65, 1241256), (78, 1034380), (104, 775785), (120, 672347), (130, 620628), (156, 517190), (195, 413752), (260, 310314), (312, 258595), (390, 206876), (520, 155157), (780, 103438), (1560, 51719)]