19880445

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{379}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 14593155

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 269, 379, 807, 1137, 1345, 1895, 3497, 4035, 4927, 5685, 10491, 14781, 17485, 24635, 52455, 73905, 101951, 305853, 509755, 1325363, 1529265, 3976089, 6626815, 19880445]

約数ペア:

[(1, 19880445), (3, 6626815), (5, 3976089), (13, 1529265), (15, 1325363), (39, 509755), (65, 305853), (195, 101951), (269, 73905), (379, 52455), (807, 24635), (1137, 17485), (1345, 14781), (1895, 10491), (3497, 5685), (4035, 4927)]