1420240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 3390408

約数和(自身を除く): 1970168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 433, 656, 820, 866, 1640, 1732, 2165, 3280, 3464, 4330, 6928, 8660, 17320, 17753, 34640, 35506, 71012, 88765, 142024, 177530, 284048, 355060, 710120, 1420240]

約数ペア:

[(1, 1420240), (2, 710120), (4, 355060), (5, 284048), (8, 177530), (10, 142024), (16, 88765), (20, 71012), (40, 35506), (41, 34640), (80, 17753), (82, 17320), (164, 8660), (205, 6928), (328, 4330), (410, 3464), (433, 3280), (656, 2165), (820, 1732), (866, 1640)]