20962070

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^2\times {\mathrm{43}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 40938480

約数和(自身を除く): 19976410

約数列:

[1, 2, 5, 10, 29, 41, 43, 58, 82, 86, 145, 205, 215, 290, 410, 430, 1189, 1247, 1681, 1763, 2378, 2494, 3362, 3526, 5945, 6235, 8405, 8815, 11890, 12470, 16810, 17630, 48749, 51127, 72283, 97498, 102254, 144566, 243745, 255635, 361415, 487490, 511270, 722830, 2096207, 4192414, 10481035, 20962070]

約数ペア:

[(1, 20962070), (2, 10481035), (5, 4192414), (10, 2096207), (29, 722830), (41, 511270), (43, 487490), (58, 361415), (82, 255635), (86, 243745), (145, 144566), (205, 102254), (215, 97498), (290, 72283), (410, 51127), (430, 48749), (1189, 17630), (1247, 16810), (1681, 12470), (1763, 11890), (2378, 8815), (2494, 8405), (3362, 6235), (3526, 5945)]