19729160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44839}}^1$

素因数の和:44861

約数の個数: 32

約数和(自身を含む): 48427200

約数和(自身を除く): 28698040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44839, 89678, 179356, 224195, 358712, 448390, 493229, 896780, 986458, 1793560, 1972916, 2466145, 3945832, 4932290, 9864580, 19729160]

約数ペア:

[(1, 19729160), (2, 9864580), (4, 4932290), (5, 3945832), (8, 2466145), (10, 1972916), (11, 1793560), (20, 986458), (22, 896780), (40, 493229), (44, 448390), (55, 358712), (88, 224195), (110, 179356), (220, 89678), (440, 44839)]