18941060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 44097480

約数和(自身を除く): 25156420

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 113, 116, 145, 170, 226, 289, 290, 340, 452, 493, 565, 578, 580, 986, 1130, 1156, 1445, 1921, 1972, 2260, 2465, 2890, 3277, 3842, 4930, 5780, 6554, 7684, 8381, 9605, 9860, 13108, 16385, 16762, 19210, 32657, 32770, 33524, 38420, 41905, 55709, 65314, 65540, 83810, 111418, 130628, 163285, 167620, 222836, 278545, 326570, 557090, 653140, 947053, 1114180, 1894106, 3788212, 4735265, 9470530, 18941060]

約数ペア:

[(1, 18941060), (2, 9470530), (4, 4735265), (5, 3788212), (10, 1894106), (17, 1114180), (20, 947053), (29, 653140), (34, 557090), (58, 326570), (68, 278545), (85, 222836), (113, 167620), (116, 163285), (145, 130628), (170, 111418), (226, 83810), (289, 65540), (290, 65314), (340, 55709), (452, 41905), (493, 38420), (565, 33524), (578, 32770), (580, 32657), (986, 19210), (1130, 16762), (1156, 16385), (1445, 13108), (1921, 9860), (1972, 9605), (2260, 8381), (2465, 7684), (2890, 6554), (3277, 5780), (3842, 4930)]