28175120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20717}}^1$

素因数の和:20747

約数の個数: 40

約数和(自身を含む): 69363864

約数和(自身を除く): 41188744

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20717, 41434, 82868, 103585, 165736, 207170, 331472, 352189, 414340, 704378, 828680, 1408756, 1657360, 1760945, 2817512, 3521890, 5635024, 7043780, 14087560, 28175120]

約数ペア:

[(1, 28175120), (2, 14087560), (4, 7043780), (5, 5635024), (8, 3521890), (10, 2817512), (16, 1760945), (17, 1657360), (20, 1408756), (34, 828680), (40, 704378), (68, 414340), (80, 352189), (85, 331472), (136, 207170), (170, 165736), (272, 103585), (340, 82868), (680, 41434), (1360, 20717)]