18386320

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{739}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 42943680

約数和(自身を除く): 24557360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 739, 1244, 1478, 1555, 2488, 2956, 3110, 3695, 4976, 5912, 6220, 7390, 11824, 12440, 14780, 24880, 29560, 59120, 229829, 459658, 919316, 1149145, 1838632, 2298290, 3677264, 4596580, 9193160, 18386320]

約数ペア:

[(1, 18386320), (2, 9193160), (4, 4596580), (5, 3677264), (8, 2298290), (10, 1838632), (16, 1149145), (20, 919316), (40, 459658), (80, 229829), (311, 59120), (622, 29560), (739, 24880), (1244, 14780), (1478, 12440), (1555, 11824), (2488, 7390), (2956, 6220), (3110, 5912), (3695, 4976)]