123236560

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{15881}}^1$

素因数の和:15991

約数の個数: 40

約数和(自身を含む): 289497096

約数和(自身を除く): 166260536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 15881, 31762, 63524, 79405, 127048, 158810, 254096, 317620, 635240, 1270480, 1540457, 3080914, 6161828, 7702285, 12323656, 15404570, 24647312, 30809140, 61618280, 123236560]

約数ペア:

[(1, 123236560), (2, 61618280), (4, 30809140), (5, 24647312), (8, 15404570), (10, 12323656), (16, 7702285), (20, 6161828), (40, 3080914), (80, 1540457), (97, 1270480), (194, 635240), (388, 317620), (485, 254096), (776, 158810), (970, 127048), (1552, 79405), (1940, 63524), (3880, 31762), (7760, 15881)]