65361440

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5171}}^1$

素因数の和:5265

約数の個数: 48

約数和(自身を含む): 156401280

約数和(自身を除く): 91039840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 5171, 6320, 10342, 12640, 20684, 25855, 41368, 51710, 82736, 103420, 165472, 206840, 408509, 413680, 817018, 827360, 1634036, 2042545, 3268072, 4085090, 6536144, 8170180, 13072288, 16340360, 32680720, 65361440]

約数ペア:

[(1, 65361440), (2, 32680720), (4, 16340360), (5, 13072288), (8, 8170180), (10, 6536144), (16, 4085090), (20, 3268072), (32, 2042545), (40, 1634036), (79, 827360), (80, 817018), (158, 413680), (160, 408509), (316, 206840), (395, 165472), (632, 103420), (790, 82736), (1264, 51710), (1580, 41368), (2528, 25855), (3160, 20684), (5171, 12640), (6320, 10342)]