18901040

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8147}}^1$

素因数の和:8189

約数の個数: 40

約数和(自身を含む): 45465840

約数和(自身を除く): 26564800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8147, 16294, 32588, 40735, 65176, 81470, 130352, 162940, 236263, 325880, 472526, 651760, 945052, 1181315, 1890104, 2362630, 3780208, 4725260, 9450520, 18901040]

約数ペア:

[(1, 18901040), (2, 9450520), (4, 4725260), (5, 3780208), (8, 2362630), (10, 1890104), (16, 1181315), (20, 945052), (29, 651760), (40, 472526), (58, 325880), (80, 236263), (116, 162940), (145, 130352), (232, 81470), (290, 65176), (464, 40735), (580, 32588), (1160, 16294), (2320, 8147)]