30963280

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1109}}^1$

素因数の和:1471

約数の個数: 40

約数和(自身を含む): 72261000

約数和(自身を除く): 41297720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1109, 1396, 1745, 2218, 2792, 3490, 4436, 5545, 5584, 6980, 8872, 11090, 13960, 17744, 22180, 27920, 44360, 88720, 387041, 774082, 1548164, 1935205, 3096328, 3870410, 6192656, 7740820, 15481640, 30963280]

約数ペア:

[(1, 30963280), (2, 15481640), (4, 7740820), (5, 6192656), (8, 3870410), (10, 3096328), (16, 1935205), (20, 1548164), (40, 774082), (80, 387041), (349, 88720), (698, 44360), (1109, 27920), (1396, 22180), (1745, 17744), (2218, 13960), (2792, 11090), (3490, 8872), (4436, 6980), (5545, 5584)]