439960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 1049760

約数和(自身を除く): 609800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 647, 680, 1294, 2588, 3235, 5176, 6470, 10999, 12940, 21998, 25880, 43996, 54995, 87992, 109990, 219980, 439960]

約数ペア:

[(1, 439960), (2, 219980), (4, 109990), (5, 87992), (8, 54995), (10, 43996), (17, 25880), (20, 21998), (34, 12940), (40, 10999), (68, 6470), (85, 5176), (136, 3235), (170, 2588), (340, 1294), (647, 680)]