865520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:393

約数の個数: 40

約数和(自身を含む): 2083200

約数和(自身を除く): 1217680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 349, 496, 620, 698, 1240, 1396, 1745, 2480, 2792, 3490, 5584, 6980, 10819, 13960, 21638, 27920, 43276, 54095, 86552, 108190, 173104, 216380, 432760, 865520]

約数ペア:

[(1, 865520), (2, 432760), (4, 216380), (5, 173104), (8, 108190), (10, 86552), (16, 54095), (20, 43276), (31, 27920), (40, 21638), (62, 13960), (80, 10819), (124, 6980), (155, 5584), (248, 3490), (310, 2792), (349, 2480), (496, 1745), (620, 1396), (698, 1240)]