1322440640

素因数分解:

$2^6\times 5^1\times {\mathrm{67}}^1\times {\mathrm{61681}}^1$

素因数の和:61765

約数の個数: 56

約数和(自身を含む): 3196114512

約数和(自身を除く): 1873673872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 134, 160, 268, 320, 335, 536, 670, 1072, 1340, 2144, 2680, 4288, 5360, 10720, 21440, 61681, 123362, 246724, 308405, 493448, 616810, 986896, 1233620, 1973792, 2467240, 3947584, 4132627, 4934480, 8265254, 9868960, 16530508, 19737920, 20663135, 33061016, 41326270, 66122032, 82652540, 132244064, 165305080, 264488128, 330610160, 661220320, 1322440640]

約数ペア:

[(1, 1322440640), (2, 661220320), (4, 330610160), (5, 264488128), (8, 165305080), (10, 132244064), (16, 82652540), (20, 66122032), (32, 41326270), (40, 33061016), (64, 20663135), (67, 19737920), (80, 16530508), (134, 9868960), (160, 8265254), (268, 4934480), (320, 4132627), (335, 3947584), (536, 2467240), (670, 1973792), (1072, 1233620), (1340, 986896), (2144, 616810), (2680, 493448), (4288, 308405), (5360, 246724), (10720, 123362), (21440, 61681)]