19896880

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3407}}^1$

素因数の和:3493

約数の個数: 40

約数和(自身を含む): 46907712

約数和(自身を除く): 27010832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3407, 5840, 6814, 13628, 17035, 27256, 34070, 54512, 68140, 136280, 248711, 272560, 497422, 994844, 1243555, 1989688, 2487110, 3979376, 4974220, 9948440, 19896880]

約数ペア:

[(1, 19896880), (2, 9948440), (4, 4974220), (5, 3979376), (8, 2487110), (10, 1989688), (16, 1243555), (20, 994844), (40, 497422), (73, 272560), (80, 248711), (146, 136280), (292, 68140), (365, 54512), (584, 34070), (730, 27256), (1168, 17035), (1460, 13628), (2920, 6814), (3407, 5840)]