20676710

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 20691610

約数列:

[1, 2, 5, 10, 29, 37, 41, 47, 58, 74, 82, 94, 145, 185, 205, 235, 290, 370, 410, 470, 1073, 1189, 1363, 1517, 1739, 1927, 2146, 2378, 2726, 3034, 3478, 3854, 5365, 5945, 6815, 7585, 8695, 9635, 10730, 11890, 13630, 15170, 17390, 19270, 43993, 50431, 55883, 71299, 87986, 100862, 111766, 142598, 219965, 252155, 279415, 356495, 439930, 504310, 558830, 712990, 2067671, 4135342, 10338355, 20676710]

約数ペア:

[(1, 20676710), (2, 10338355), (5, 4135342), (10, 2067671), (29, 712990), (37, 558830), (41, 504310), (47, 439930), (58, 356495), (74, 279415), (82, 252155), (94, 219965), (145, 142598), (185, 111766), (205, 100862), (235, 87986), (290, 71299), (370, 55883), (410, 50431), (470, 43993), (1073, 19270), (1189, 17390), (1363, 15170), (1517, 13630), (1739, 11890), (1927, 10730), (2146, 9635), (2378, 8695), (2726, 7585), (3034, 6815), (3478, 5945), (3854, 5365)]