393622480

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{3853}}^1$

素因数の和:5143

約数の個数: 40

約数和(自身を含む): 916126632

約数和(自身を除く): 522504152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 2554, 3853, 5108, 6385, 7706, 10216, 12770, 15412, 19265, 20432, 25540, 30824, 38530, 51080, 61648, 77060, 102160, 154120, 308240, 4920281, 9840562, 19681124, 24601405, 39362248, 49202810, 78724496, 98405620, 196811240, 393622480]

約数ペア:

[(1, 393622480), (2, 196811240), (4, 98405620), (5, 78724496), (8, 49202810), (10, 39362248), (16, 24601405), (20, 19681124), (40, 9840562), (80, 4920281), (1277, 308240), (2554, 154120), (3853, 102160), (5108, 77060), (6385, 61648), (7706, 51080), (10216, 38530), (12770, 30824), (15412, 25540), (19265, 20432)]