20146720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11447}}^1$

素因数の和:11473

約数の個数: 48

約数和(自身を含む): 51928128

約数和(自身を除く): 31781408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11447, 22894, 45788, 57235, 91576, 114470, 125917, 183152, 228940, 251834, 366304, 457880, 503668, 629585, 915760, 1007336, 1259170, 1831520, 2014672, 2518340, 4029344, 5036680, 10073360, 20146720]

約数ペア:

[(1, 20146720), (2, 10073360), (4, 5036680), (5, 4029344), (8, 2518340), (10, 2014672), (11, 1831520), (16, 1259170), (20, 1007336), (22, 915760), (32, 629585), (40, 503668), (44, 457880), (55, 366304), (80, 251834), (88, 228940), (110, 183152), (160, 125917), (176, 114470), (220, 91576), (352, 57235), (440, 45788), (880, 22894), (1760, 11447)]