11178280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 26389440

約数和(自身を除く): 15211160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 97, 134, 172, 194, 215, 268, 335, 344, 388, 430, 485, 536, 670, 776, 860, 970, 1340, 1720, 1940, 2680, 2881, 3880, 4171, 5762, 6499, 8342, 11524, 12998, 14405, 16684, 20855, 23048, 25996, 28810, 32495, 33368, 41710, 51992, 57620, 64990, 83420, 115240, 129980, 166840, 259960, 279457, 558914, 1117828, 1397285, 2235656, 2794570, 5589140, 11178280]

約数ペア:

[(1, 11178280), (2, 5589140), (4, 2794570), (5, 2235656), (8, 1397285), (10, 1117828), (20, 558914), (40, 279457), (43, 259960), (67, 166840), (86, 129980), (97, 115240), (134, 83420), (172, 64990), (194, 57620), (215, 51992), (268, 41710), (335, 33368), (344, 32495), (388, 28810), (430, 25996), (485, 23048), (536, 20855), (670, 16684), (776, 14405), (860, 12998), (970, 11524), (1340, 8342), (1720, 6499), (1940, 5762), (2680, 4171), (2881, 3880)]