18984880

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{773}}^1$

素因数の和:1093

約数の個数: 40

約数和(自身を含む): 44340912

約数和(自身を除く): 25356032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 773, 1228, 1535, 1546, 2456, 3070, 3092, 3865, 4912, 6140, 6184, 7730, 12280, 12368, 15460, 24560, 30920, 61840, 237311, 474622, 949244, 1186555, 1898488, 2373110, 3796976, 4746220, 9492440, 18984880]

約数ペア:

[(1, 18984880), (2, 9492440), (4, 4746220), (5, 3796976), (8, 2373110), (10, 1898488), (16, 1186555), (20, 949244), (40, 474622), (80, 237311), (307, 61840), (614, 30920), (773, 24560), (1228, 15460), (1535, 12368), (1546, 12280), (2456, 7730), (3070, 6184), (3092, 6140), (3865, 4912)]