138430360

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{5399}}^1$

素因数の和:6051

約数の個数: 32

約数和(自身を含む): 312012000

約数和(自身を除く): 173581640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 5399, 6410, 10798, 12820, 21596, 25640, 26995, 43192, 53990, 107980, 215960, 3460759, 6921518, 13843036, 17303795, 27686072, 34607590, 69215180, 138430360]

約数ペア:

[(1, 138430360), (2, 69215180), (4, 34607590), (5, 27686072), (8, 17303795), (10, 13843036), (20, 6921518), (40, 3460759), (641, 215960), (1282, 107980), (2564, 53990), (3205, 43192), (5128, 26995), (5399, 25640), (6410, 21596), (10798, 12820)]