20226560

素因数分解:

$2^9\times 5^1\times {\mathrm{7901}}^1$

素因数の和:7924

約数の個数: 40

約数和(自身を含む): 48502476

約数和(自身を除く): 28275916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7901, 15802, 31604, 39505, 63208, 79010, 126416, 158020, 252832, 316040, 505664, 632080, 1011328, 1264160, 2022656, 2528320, 4045312, 5056640, 10113280, 20226560]

約数ペア:

[(1, 20226560), (2, 10113280), (4, 5056640), (5, 4045312), (8, 2528320), (10, 2022656), (16, 1264160), (20, 1011328), (32, 632080), (40, 505664), (64, 316040), (80, 252832), (128, 158020), (160, 126416), (256, 79010), (320, 63208), (512, 39505), (640, 31604), (1280, 15802), (2560, 7901)]