331320760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{75991}}^1$

素因数の和:76111

約数の個数: 32

約数和(自身を含む): 752320800

約数和(自身を除く): 421000040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 75991, 151982, 303964, 379955, 607928, 759910, 1519820, 3039640, 8283019, 16566038, 33132076, 41415095, 66264152, 82830190, 165660380, 331320760]

約数ペア:

[(1, 331320760), (2, 165660380), (4, 82830190), (5, 66264152), (8, 41415095), (10, 33132076), (20, 16566038), (40, 8283019), (109, 3039640), (218, 1519820), (436, 759910), (545, 607928), (872, 379955), (1090, 303964), (2180, 151982), (4360, 75991)]