39699440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 101645280

約数和(自身を除く): 61945840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 229, 394, 440, 458, 788, 880, 916, 985, 1145, 1576, 1832, 1970, 2167, 2290, 2519, 3152, 3664, 3940, 4334, 4580, 5038, 7880, 8668, 9160, 10076, 10835, 12595, 15760, 17336, 18320, 20152, 21670, 25190, 34672, 40304, 43340, 45113, 50380, 86680, 90226, 100760, 173360, 180452, 201520, 225565, 360904, 451130, 496243, 721808, 902260, 992486, 1804520, 1984972, 2481215, 3609040, 3969944, 4962430, 7939888, 9924860, 19849720, 39699440]

約数ペア:

[(1, 39699440), (2, 19849720), (4, 9924860), (5, 7939888), (8, 4962430), (10, 3969944), (11, 3609040), (16, 2481215), (20, 1984972), (22, 1804520), (40, 992486), (44, 902260), (55, 721808), (80, 496243), (88, 451130), (110, 360904), (176, 225565), (197, 201520), (220, 180452), (229, 173360), (394, 100760), (440, 90226), (458, 86680), (788, 50380), (880, 45113), (916, 43340), (985, 40304), (1145, 34672), (1576, 25190), (1832, 21670), (1970, 20152), (2167, 18320), (2290, 17336), (2519, 15760), (3152, 12595), (3664, 10835), (3940, 10076), (4334, 9160), (4580, 8668), (5038, 7880)]