79781440

素因数分解:

$2^6\times 5^1\times {\mathrm{249317}}^1$

素因数の和:249334

約数の個数: 28

約数和(自身を含む): 189980316

約数和(自身を除く): 110198876

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 249317, 498634, 997268, 1246585, 1994536, 2493170, 3989072, 4986340, 7978144, 9972680, 15956288, 19945360, 39890720, 79781440]

約数ペア:

[(1, 79781440), (2, 39890720), (4, 19945360), (5, 15956288), (8, 9972680), (10, 7978144), (16, 4986340), (20, 3989072), (32, 2493170), (40, 1994536), (64, 1246585), (80, 997268), (160, 498634), (320, 249317)]