259173880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{925621}}^1$

素因数の和:925639

約数の個数: 32

約数和(自身を含む): 666447840

約数和(自身を除く): 407273960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 925621, 1851242, 3702484, 4628105, 6479347, 7404968, 9256210, 12958694, 18512420, 25917388, 32396735, 37024840, 51834776, 64793470, 129586940, 259173880]

約数ペア:

[(1, 259173880), (2, 129586940), (4, 64793470), (5, 51834776), (7, 37024840), (8, 32396735), (10, 25917388), (14, 18512420), (20, 12958694), (28, 9256210), (35, 7404968), (40, 6479347), (56, 4628105), (70, 3702484), (140, 1851242), (280, 925621)]