12871980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1$

素因数の和:237

約数の個数: 144

約数和(自身を含む): 44241120

約数和(自身を除く): 31369140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 121, 132, 135, 165, 180, 197, 198, 220, 242, 270, 297, 330, 363, 394, 396, 484, 495, 540, 591, 594, 605, 660, 726, 788, 985, 990, 1089, 1182, 1188, 1210, 1452, 1485, 1773, 1815, 1970, 1980, 2167, 2178, 2364, 2420, 2955, 2970, 3267, 3546, 3630, 3940, 4334, 4356, 5319, 5445, 5910, 5940, 6501, 6534, 7092, 7260, 8668, 8865, 10638, 10835, 10890, 11820, 13002, 13068, 16335, 17730, 19503, 21276, 21670, 21780, 23837, 26004, 26595, 32505, 32670, 35460, 39006, 43340, 47674, 53190, 58509, 65010, 65340, 71511, 78012, 95348, 97515, 106380, 117018, 119185, 130020, 143022, 195030, 214533, 234036, 238370, 286044, 292545, 357555, 390060, 429066, 476740, 585090, 643599, 715110, 858132, 1072665, 1170180, 1287198, 1430220, 2145330, 2574396, 3217995, 4290660, 6435990, 12871980]

約数ペア:

[(1, 12871980), (2, 6435990), (3, 4290660), (4, 3217995), (5, 2574396), (6, 2145330), (9, 1430220), (10, 1287198), (11, 1170180), (12, 1072665), (15, 858132), (18, 715110), (20, 643599), (22, 585090), (27, 476740), (30, 429066), (33, 390060), (36, 357555), (44, 292545), (45, 286044), (54, 238370), (55, 234036), (60, 214533), (66, 195030), (90, 143022), (99, 130020), (108, 119185), (110, 117018), (121, 106380), (132, 97515), (135, 95348), (165, 78012), (180, 71511), (197, 65340), (198, 65010), (220, 58509), (242, 53190), (270, 47674), (297, 43340), (330, 39006), (363, 35460), (394, 32670), (396, 32505), (484, 26595), (495, 26004), (540, 23837), (591, 21780), (594, 21670), (605, 21276), (660, 19503), (726, 17730), (788, 16335), (985, 13068), (990, 13002), (1089, 11820), (1182, 10890), (1188, 10835), (1210, 10638), (1452, 8865), (1485, 8668), (1773, 7260), (1815, 7092), (1970, 6534), (1980, 6501), (2167, 5940), (2178, 5910), (2364, 5445), (2420, 5319), (2955, 4356), (2970, 4334), (3267, 3940), (3546, 3630)]