80267720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{947}}^1$

素因数の和:1134

約数の個数: 64

約数和(自身を含む): 195894720

約数和(自身を除く): 115627000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 260, 326, 520, 652, 815, 947, 1304, 1630, 1894, 2119, 3260, 3788, 4238, 4735, 6520, 7576, 8476, 9470, 10595, 12311, 16952, 18940, 21190, 24622, 37880, 42380, 49244, 61555, 84760, 98488, 123110, 154361, 246220, 308722, 492440, 617444, 771805, 1234888, 1543610, 2006693, 3087220, 4013386, 6174440, 8026772, 10033465, 16053544, 20066930, 40133860, 80267720]

約数ペア:

[(1, 80267720), (2, 40133860), (4, 20066930), (5, 16053544), (8, 10033465), (10, 8026772), (13, 6174440), (20, 4013386), (26, 3087220), (40, 2006693), (52, 1543610), (65, 1234888), (104, 771805), (130, 617444), (163, 492440), (260, 308722), (326, 246220), (520, 154361), (652, 123110), (815, 98488), (947, 84760), (1304, 61555), (1630, 49244), (1894, 42380), (2119, 37880), (3260, 24622), (3788, 21190), (4238, 18940), (4735, 16952), (6520, 12311), (7576, 10595), (8476, 9470)]