61978480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^2\times {\mathrm{419}}^1$

素因数の和:518

約数の個数: 60

約数和(自身を含む): 147881160

約数和(自身を除く): 85902680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 419, 430, 688, 838, 860, 1676, 1720, 1849, 2095, 3352, 3440, 3698, 4190, 6704, 7396, 8380, 9245, 14792, 16760, 18017, 18490, 29584, 33520, 36034, 36980, 72068, 73960, 90085, 144136, 147920, 180170, 288272, 360340, 720680, 774731, 1441360, 1549462, 3098924, 3873655, 6197848, 7747310, 12395696, 15494620, 30989240, 61978480]

約数ペア:

[(1, 61978480), (2, 30989240), (4, 15494620), (5, 12395696), (8, 7747310), (10, 6197848), (16, 3873655), (20, 3098924), (40, 1549462), (43, 1441360), (80, 774731), (86, 720680), (172, 360340), (215, 288272), (344, 180170), (419, 147920), (430, 144136), (688, 90085), (838, 73960), (860, 72068), (1676, 36980), (1720, 36034), (1849, 33520), (2095, 29584), (3352, 18490), (3440, 18017), (3698, 16760), (4190, 14792), (6704, 9245), (7396, 8380)]