20132646440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{688531}}^1$

素因数の和:688602

約数の個数: 64

約数和(自身を含む): 49078560960

約数和(自身を除く): 28945914520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2924, 3655, 5848, 7310, 14620, 29240, 688531, 1377062, 2754124, 3442655, 5508248, 6885310, 11705027, 13770620, 23410054, 27541240, 29606833, 46820108, 58525135, 59213666, 93640216, 117050270, 118427332, 148034165, 234100540, 236854664, 296068330, 468201080, 503316161, 592136660, 1006632322, 1184273320, 2013264644, 2516580805, 4026529288, 5033161610, 10066323220, 20132646440]

約数ペア:

[(1, 20132646440), (2, 10066323220), (4, 5033161610), (5, 4026529288), (8, 2516580805), (10, 2013264644), (17, 1184273320), (20, 1006632322), (34, 592136660), (40, 503316161), (43, 468201080), (68, 296068330), (85, 236854664), (86, 234100540), (136, 148034165), (170, 118427332), (172, 117050270), (215, 93640216), (340, 59213666), (344, 58525135), (430, 46820108), (680, 29606833), (731, 27541240), (860, 23410054), (1462, 13770620), (1720, 11705027), (2924, 6885310), (3655, 5508248), (5848, 3442655), (7310, 2754124), (14620, 1377062), (29240, 688531)]