494220880

素因数分解:

$2^4\times 5^1\times {\mathrm{307}}^1\times {\mathrm{20123}}^1$

素因数の和:20443

約数の個数: 40

約数和(自身を含む): 1152863712

約数和(自身を除く): 658642832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 307, 614, 1228, 1535, 2456, 3070, 4912, 6140, 12280, 20123, 24560, 40246, 80492, 100615, 160984, 201230, 321968, 402460, 804920, 1609840, 6177761, 12355522, 24711044, 30888805, 49422088, 61777610, 98844176, 123555220, 247110440, 494220880]

約数ペア:

[(1, 494220880), (2, 247110440), (4, 123555220), (5, 98844176), (8, 61777610), (10, 49422088), (16, 30888805), (20, 24711044), (40, 12355522), (80, 6177761), (307, 1609840), (614, 804920), (1228, 402460), (1535, 321968), (2456, 201230), (3070, 160984), (4912, 100615), (6140, 80492), (12280, 40246), (20123, 24560)]