290438408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{146983}}^1$

素因数の和:147021

約数の個数: 32

約数和(自身を含む): 617332800

約数和(自身を除く): 326894392

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 146983, 293966, 587932, 1175864, 1910779, 2792677, 3821558, 5585354, 7643116, 11170708, 15286232, 22341416, 36304801, 72609602, 145219204, 290438408]

約数ペア:

[(1, 290438408), (2, 145219204), (4, 72609602), (8, 36304801), (13, 22341416), (19, 15286232), (26, 11170708), (38, 7643116), (52, 5585354), (76, 3821558), (104, 2792677), (152, 1910779), (247, 1175864), (494, 587932), (988, 293966), (1976, 146983)]