72881440

素因数分解:

$2^5\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2633}}^1$

素因数の和:2821

約数の個数: 48

約数和(自身を含む): 173243448

約数和(自身を除く): 100362008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 173, 346, 692, 865, 1384, 1730, 2633, 2768, 3460, 5266, 5536, 6920, 10532, 13165, 13840, 21064, 26330, 27680, 42128, 52660, 84256, 105320, 210640, 421280, 455509, 911018, 1822036, 2277545, 3644072, 4555090, 7288144, 9110180, 14576288, 18220360, 36440720, 72881440]

約数ペア:

[(1, 72881440), (2, 36440720), (4, 18220360), (5, 14576288), (8, 9110180), (10, 7288144), (16, 4555090), (20, 3644072), (32, 2277545), (40, 1822036), (80, 911018), (160, 455509), (173, 421280), (346, 210640), (692, 105320), (865, 84256), (1384, 52660), (1730, 42128), (2633, 27680), (2768, 26330), (3460, 21064), (5266, 13840), (5536, 13165), (6920, 10532)]