28145504080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18516779}}^1$

素因数の和:18516811

約数の個数: 40

約数和(自身を含む): 68882421600

約数和(自身を除く): 40736917520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18516779, 37033558, 74067116, 92583895, 148134232, 185167790, 296268464, 351818801, 370335580, 703637602, 740671160, 1407275204, 1481342320, 1759094005, 2814550408, 3518188010, 5629100816, 7036376020, 14072752040, 28145504080]

約数ペア:

[(1, 28145504080), (2, 14072752040), (4, 7036376020), (5, 5629100816), (8, 3518188010), (10, 2814550408), (16, 1759094005), (19, 1481342320), (20, 1407275204), (38, 740671160), (40, 703637602), (76, 370335580), (80, 351818801), (95, 296268464), (152, 185167790), (190, 148134232), (304, 92583895), (380, 74067116), (760, 37033558), (1520, 18516779)]