85178840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{547}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 204184800

約数和(自身を除く): 119005960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 229, 340, 458, 547, 680, 916, 1094, 1145, 1832, 2188, 2290, 2735, 3893, 4376, 4580, 5470, 7786, 9160, 9299, 10940, 15572, 18598, 19465, 21880, 31144, 37196, 38930, 46495, 74392, 77860, 92990, 125263, 155720, 185980, 250526, 371960, 501052, 626315, 1002104, 1252630, 2129471, 2505260, 4258942, 5010520, 8517884, 10647355, 17035768, 21294710, 42589420, 85178840]

約数ペア:

[(1, 85178840), (2, 42589420), (4, 21294710), (5, 17035768), (8, 10647355), (10, 8517884), (17, 5010520), (20, 4258942), (34, 2505260), (40, 2129471), (68, 1252630), (85, 1002104), (136, 626315), (170, 501052), (229, 371960), (340, 250526), (458, 185980), (547, 155720), (680, 125263), (916, 92990), (1094, 77860), (1145, 74392), (1832, 46495), (2188, 38930), (2290, 37196), (2735, 31144), (3893, 21880), (4376, 19465), (4580, 18598), (5470, 15572), (7786, 10940), (9160, 9299)]