128065880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{86531}}^1$

素因数の和:86579

約数の個数: 32

約数和(自身を含む): 295939440

約数和(自身を除く): 167873560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 86531, 173062, 346124, 432655, 692248, 865310, 1730620, 3201647, 3461240, 6403294, 12806588, 16008235, 25613176, 32016470, 64032940, 128065880]

約数ペア:

[(1, 128065880), (2, 64032940), (4, 32016470), (5, 25613176), (8, 16008235), (10, 12806588), (20, 6403294), (37, 3461240), (40, 3201647), (74, 1730620), (148, 865310), (185, 692248), (296, 432655), (370, 346124), (740, 173062), (1480, 86531)]