209960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 491400

約数和(自身を除く): 281440

約数列:

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

約数ペア:

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