18457160

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 24725560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 71, 97, 134, 142, 194, 268, 284, 335, 355, 388, 485, 536, 568, 670, 710, 776, 970, 1340, 1420, 1940, 2680, 2840, 3880, 4757, 6499, 6887, 9514, 12998, 13774, 19028, 23785, 25996, 27548, 32495, 34435, 38056, 47570, 51992, 55096, 64990, 68870, 95140, 129980, 137740, 190280, 259960, 275480, 461429, 922858, 1845716, 2307145, 3691432, 4614290, 9228580, 18457160]

約数ペア:

[(1, 18457160), (2, 9228580), (4, 4614290), (5, 3691432), (8, 2307145), (10, 1845716), (20, 922858), (40, 461429), (67, 275480), (71, 259960), (97, 190280), (134, 137740), (142, 129980), (194, 95140), (268, 68870), (284, 64990), (335, 55096), (355, 51992), (388, 47570), (485, 38056), (536, 34435), (568, 32495), (670, 27548), (710, 25996), (776, 23785), (970, 19028), (1340, 13774), (1420, 12998), (1940, 9514), (2680, 6887), (2840, 6499), (3880, 4757)]