30800920

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4451}}^1$

素因数の和:4635

約数の個数: 32

約数和(自身を含む): 69718320

約数和(自身を除く): 38917400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 4451, 6920, 8902, 17804, 22255, 35608, 44510, 89020, 178040, 770023, 1540046, 3080092, 3850115, 6160184, 7700230, 15400460, 30800920]

約数ペア:

[(1, 30800920), (2, 15400460), (4, 7700230), (5, 6160184), (8, 3850115), (10, 3080092), (20, 1540046), (40, 770023), (173, 178040), (346, 89020), (692, 44510), (865, 35608), (1384, 22255), (1730, 17804), (3460, 8902), (4451, 6920)]