1256240

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 2999808

約数和(自身を除く): 1743568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 383, 410, 656, 766, 820, 1532, 1640, 1915, 3064, 3280, 3830, 6128, 7660, 15320, 15703, 30640, 31406, 62812, 78515, 125624, 157030, 251248, 314060, 628120, 1256240]

約数ペア:

[(1, 1256240), (2, 628120), (4, 314060), (5, 251248), (8, 157030), (10, 125624), (16, 78515), (20, 62812), (40, 31406), (41, 30640), (80, 15703), (82, 15320), (164, 7660), (205, 6128), (328, 3830), (383, 3280), (410, 3064), (656, 1915), (766, 1640), (820, 1532)]