28783120

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15643}}^1$

素因数の和:15679

約数の個数: 40

約数和(自身を含む): 69834816

約数和(自身を除く): 41051696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 15643, 31286, 62572, 78215, 125144, 156430, 250288, 312860, 359789, 625720, 719578, 1251440, 1439156, 1798945, 2878312, 3597890, 5756624, 7195780, 14391560, 28783120]

約数ペア:

[(1, 28783120), (2, 14391560), (4, 7195780), (5, 5756624), (8, 3597890), (10, 2878312), (16, 1798945), (20, 1439156), (23, 1251440), (40, 719578), (46, 625720), (80, 359789), (92, 312860), (115, 250288), (184, 156430), (230, 125144), (368, 78215), (460, 62572), (920, 31286), (1840, 15643)]