865673590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{21767}}^1$

素因数の和:21912

約数の個数: 32

約数和(自身を含む): 1612747584

約数和(自身を除く): 747073994

約数列:

[1, 2, 5, 10, 41, 82, 97, 194, 205, 410, 485, 970, 3977, 7954, 19885, 21767, 39770, 43534, 108835, 217670, 892447, 1784894, 2111399, 4222798, 4462235, 8924470, 10556995, 21113990, 86567359, 173134718, 432836795, 865673590]

約数ペア:

[(1, 865673590), (2, 432836795), (5, 173134718), (10, 86567359), (41, 21113990), (82, 10556995), (97, 8924470), (194, 4462235), (205, 4222798), (410, 2111399), (485, 1784894), (970, 892447), (3977, 217670), (7954, 108835), (19885, 43534), (21767, 39770)]