19313870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 48

約数和(自身を含む): 38063088

約数和(自身を除く): 18749218

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 163, 170, 205, 289, 326, 410, 578, 697, 815, 1394, 1445, 1630, 2771, 2890, 3485, 5542, 6683, 6970, 11849, 13366, 13855, 23698, 27710, 33415, 47107, 59245, 66830, 94214, 113611, 118490, 227222, 235535, 471070, 568055, 1136110, 1931387, 3862774, 9656935, 19313870]

約数ペア:

[(1, 19313870), (2, 9656935), (5, 3862774), (10, 1931387), (17, 1136110), (34, 568055), (41, 471070), (82, 235535), (85, 227222), (163, 118490), (170, 113611), (205, 94214), (289, 66830), (326, 59245), (410, 47107), (578, 33415), (697, 27710), (815, 23698), (1394, 13855), (1445, 13366), (1630, 11849), (2771, 6970), (2890, 6683), (3485, 5542)]