89908240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66109}}^1$

素因数の和:66139

約数の個数: 40

約数和(自身を含む): 221336280

約数和(自身を除く): 131428040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 66109, 132218, 264436, 330545, 528872, 661090, 1057744, 1123853, 1322180, 2247706, 2644360, 4495412, 5288720, 5619265, 8990824, 11238530, 17981648, 22477060, 44954120, 89908240]

約数ペア:

[(1, 89908240), (2, 44954120), (4, 22477060), (5, 17981648), (8, 11238530), (10, 8990824), (16, 5619265), (17, 5288720), (20, 4495412), (34, 2644360), (40, 2247706), (68, 1322180), (80, 1123853), (85, 1057744), (136, 661090), (170, 528872), (272, 330545), (340, 264436), (680, 132218), (1360, 66109)]