19995910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{37}}^1$

素因数の和:106

約数の個数: 64

約数和(自身を含む): 42845760

約数和(自身を除く): 22849850

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 37, 55, 74, 85, 110, 170, 185, 187, 289, 370, 374, 407, 578, 629, 814, 935, 1258, 1445, 1870, 2035, 2890, 3145, 3179, 4070, 4913, 6290, 6358, 6919, 9826, 10693, 13838, 15895, 21386, 24565, 31790, 34595, 49130, 53465, 54043, 69190, 106930, 108086, 117623, 181781, 235246, 270215, 363562, 540430, 588115, 908905, 1176230, 1817810, 1999591, 3999182, 9997955, 19995910]

約数ペア:

[(1, 19995910), (2, 9997955), (5, 3999182), (10, 1999591), (11, 1817810), (17, 1176230), (22, 908905), (34, 588115), (37, 540430), (55, 363562), (74, 270215), (85, 235246), (110, 181781), (170, 117623), (185, 108086), (187, 106930), (289, 69190), (370, 54043), (374, 53465), (407, 49130), (578, 34595), (629, 31790), (814, 24565), (935, 21386), (1258, 15895), (1445, 13838), (1870, 10693), (2035, 9826), (2890, 6919), (3145, 6358), (3179, 6290), (4070, 4913)]