138603640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6781}}^1$

素因数の和:6872

約数の個数: 64

約数和(自身を含む): 361344960

約数和(自身を除く): 222741320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1460, 2044, 2555, 2920, 4088, 5110, 6781, 10220, 13562, 20440, 27124, 33905, 47467, 54248, 67810, 94934, 135620, 189868, 237335, 271240, 379736, 474670, 495013, 949340, 990026, 1898680, 1980052, 2475065, 3465091, 3960104, 4950130, 6930182, 9900260, 13860364, 17325455, 19800520, 27720728, 34650910, 69301820, 138603640]

約数ペア:

[(1, 138603640), (2, 69301820), (4, 34650910), (5, 27720728), (7, 19800520), (8, 17325455), (10, 13860364), (14, 9900260), (20, 6930182), (28, 4950130), (35, 3960104), (40, 3465091), (56, 2475065), (70, 1980052), (73, 1898680), (140, 990026), (146, 949340), (280, 495013), (292, 474670), (365, 379736), (511, 271240), (584, 237335), (730, 189868), (1022, 135620), (1460, 94934), (2044, 67810), (2555, 54248), (2920, 47467), (4088, 33905), (5110, 27124), (6781, 20440), (10220, 13562)]