1661569640

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{99139}}^1$

素因数の和:99569

約数の個数: 32

約数和(自身を含む): 3747492000

約数和(自身を除く): 2085922360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 8380, 16760, 99139, 198278, 396556, 495695, 793112, 991390, 1982780, 3965560, 41539241, 83078482, 166156964, 207696205, 332313928, 415392410, 830784820, 1661569640]

約数ペア:

[(1, 1661569640), (2, 830784820), (4, 415392410), (5, 332313928), (8, 207696205), (10, 166156964), (20, 83078482), (40, 41539241), (419, 3965560), (838, 1982780), (1676, 991390), (2095, 793112), (3352, 495695), (4190, 396556), (8380, 198278), (16760, 99139)]