81888740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2657}}^1$

素因数の和:2756

約数の個数: 48

約数和(自身を含む): 182189952

約数和(自身を除く): 100301212

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 67, 92, 115, 134, 230, 268, 335, 460, 670, 1340, 1541, 2657, 3082, 5314, 6164, 7705, 10628, 13285, 15410, 26570, 30820, 53140, 61111, 122222, 178019, 244444, 305555, 356038, 611110, 712076, 890095, 1222220, 1780190, 3560380, 4094437, 8188874, 16377748, 20472185, 40944370, 81888740]

約数ペア:

[(1, 81888740), (2, 40944370), (4, 20472185), (5, 16377748), (10, 8188874), (20, 4094437), (23, 3560380), (46, 1780190), (67, 1222220), (92, 890095), (115, 712076), (134, 611110), (230, 356038), (268, 305555), (335, 244444), (460, 178019), (670, 122222), (1340, 61111), (1541, 53140), (2657, 30820), (3082, 26570), (5314, 15410), (6164, 13285), (7705, 10628)]