19328720

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{787}}^1$

素因数の和:1107

約数の個数: 40

約数和(自身を含む): 45142944

約数和(自身を除く): 25814224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 787, 1228, 1535, 1574, 2456, 3070, 3148, 3935, 4912, 6140, 6296, 7870, 12280, 12592, 15740, 24560, 31480, 62960, 241609, 483218, 966436, 1208045, 1932872, 2416090, 3865744, 4832180, 9664360, 19328720]

約数ペア:

[(1, 19328720), (2, 9664360), (4, 4832180), (5, 3865744), (8, 2416090), (10, 1932872), (16, 1208045), (20, 966436), (40, 483218), (80, 241609), (307, 62960), (614, 31480), (787, 24560), (1228, 15740), (1535, 12592), (1574, 12280), (2456, 7870), (3070, 6296), (3148, 6140), (3935, 4912)]