1660632440

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{380879}}^1$

素因数の和:380999

約数の個数: 32

約数和(自身を含む): 3770712000

約数和(自身を除く): 2110079560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 380879, 761758, 1523516, 1904395, 3047032, 3808790, 7617580, 15235160, 41515811, 83031622, 166063244, 207579055, 332126488, 415158110, 830316220, 1660632440]

約数ペア:

[(1, 1660632440), (2, 830316220), (4, 415158110), (5, 332126488), (8, 207579055), (10, 166063244), (20, 83031622), (40, 41515811), (109, 15235160), (218, 7617580), (436, 3808790), (545, 3047032), (872, 1904395), (1090, 1523516), (2180, 761758), (4360, 380879)]