18694760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{373}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 48470400

約数和(自身を除く): 29775640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 280, 358, 373, 716, 746, 895, 1253, 1432, 1492, 1790, 1865, 2506, 2611, 2984, 3580, 3730, 5012, 5222, 6265, 7160, 7460, 10024, 10444, 12530, 13055, 14920, 20888, 25060, 26110, 50120, 52220, 66767, 104440, 133534, 267068, 333835, 467369, 534136, 667670, 934738, 1335340, 1869476, 2336845, 2670680, 3738952, 4673690, 9347380, 18694760]

約数ペア:

[(1, 18694760), (2, 9347380), (4, 4673690), (5, 3738952), (7, 2670680), (8, 2336845), (10, 1869476), (14, 1335340), (20, 934738), (28, 667670), (35, 534136), (40, 467369), (56, 333835), (70, 267068), (140, 133534), (179, 104440), (280, 66767), (358, 52220), (373, 50120), (716, 26110), (746, 25060), (895, 20888), (1253, 14920), (1432, 13055), (1492, 12530), (1790, 10444), (1865, 10024), (2506, 7460), (2611, 7160), (2984, 6265), (3580, 5222), (3730, 5012)]