17939404780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{44101}}^1$

素因数の和:44207

約数の個数: 72

約数和(自身を含む): 42076483344

約数和(自身を除く): 24137078564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1849, 1892, 2365, 3698, 4730, 7396, 9245, 9460, 18490, 20339, 36980, 40678, 44101, 81356, 88202, 101695, 176404, 203390, 220505, 406780, 441010, 485111, 882020, 970222, 1896343, 1940444, 2425555, 3792686, 4851110, 7585372, 9481715, 9702220, 18963430, 20859773, 37926860, 41719546, 81542749, 83439092, 104298865, 163085498, 208597730, 326170996, 407713745, 417195460, 815427490, 896970239, 1630854980, 1793940478, 3587880956, 4484851195, 8969702390, 17939404780]

約数ペア:

[(1, 17939404780), (2, 8969702390), (4, 4484851195), (5, 3587880956), (10, 1793940478), (11, 1630854980), (20, 896970239), (22, 815427490), (43, 417195460), (44, 407713745), (55, 326170996), (86, 208597730), (110, 163085498), (172, 104298865), (215, 83439092), (220, 81542749), (430, 41719546), (473, 37926860), (860, 20859773), (946, 18963430), (1849, 9702220), (1892, 9481715), (2365, 7585372), (3698, 4851110), (4730, 3792686), (7396, 2425555), (9245, 1940444), (9460, 1896343), (18490, 970222), (20339, 882020), (36980, 485111), (40678, 441010), (44101, 406780), (81356, 220505), (88202, 203390), (101695, 176404)]