419920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 40

約数和(自身を含む): 1015560

約数和(自身を除く): 595640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 181, 232, 290, 362, 464, 580, 724, 905, 1160, 1448, 1810, 2320, 2896, 3620, 5249, 7240, 10498, 14480, 20996, 26245, 41992, 52490, 83984, 104980, 209960, 419920]

約数ペア:

[(1, 419920), (2, 209960), (4, 104980), (5, 83984), (8, 52490), (10, 41992), (16, 26245), (20, 20996), (29, 14480), (40, 10498), (58, 7240), (80, 5249), (116, 3620), (145, 2896), (181, 2320), (232, 1810), (290, 1448), (362, 1160), (464, 905), (580, 724)]