199950985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 264983040

約数和(自身を除く): 65032055

約数列:

[1, 5, 13, 61, 65, 211, 239, 305, 793, 1055, 1195, 2743, 3107, 3965, 12871, 13715, 14579, 15535, 50429, 64355, 72895, 167323, 189527, 252145, 655577, 836615, 947635, 3076169, 3277885, 15380845, 39990197, 199950985]

約数ペア:

[(1, 199950985), (5, 39990197), (13, 15380845), (61, 3277885), (65, 3076169), (211, 947635), (239, 836615), (305, 655577), (793, 252145), (1055, 189527), (1195, 167323), (2743, 72895), (3107, 64355), (3965, 50429), (12871, 15535), (13715, 14579)]