72945040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{130259}}^1$

素因数の和:130279

約数の個数: 40

約数和(自身を含む): 193826880

約数和(自身を除く): 120881840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 130259, 260518, 521036, 651295, 911813, 1042072, 1302590, 1823626, 2084144, 2605180, 3647252, 4559065, 5210360, 7294504, 9118130, 10420720, 14589008, 18236260, 36472520, 72945040]

約数ペア:

[(1, 72945040), (2, 36472520), (4, 18236260), (5, 14589008), (7, 10420720), (8, 9118130), (10, 7294504), (14, 5210360), (16, 4559065), (20, 3647252), (28, 2605180), (35, 2084144), (40, 1823626), (56, 1302590), (70, 1042072), (80, 911813), (112, 651295), (140, 521036), (280, 260518), (560, 130259)]