19956780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 120

約数和(自身を含む): 63748608

約数和(自身を除く): 43791828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 97, 108, 127, 135, 162, 180, 194, 254, 270, 291, 324, 381, 388, 405, 485, 508, 540, 582, 635, 762, 810, 873, 970, 1143, 1164, 1270, 1455, 1524, 1620, 1746, 1905, 1940, 2286, 2540, 2619, 2910, 3429, 3492, 3810, 4365, 4572, 5238, 5715, 5820, 6858, 7620, 7857, 8730, 10287, 10476, 11430, 12319, 13095, 13716, 15714, 17145, 17460, 20574, 22860, 24638, 26190, 31428, 34290, 36957, 39285, 41148, 49276, 51435, 52380, 61595, 68580, 73914, 78570, 102870, 110871, 123190, 147828, 157140, 184785, 205740, 221742, 246380, 332613, 369570, 443484, 554355, 665226, 739140, 997839, 1108710, 1330452, 1663065, 1995678, 2217420, 3326130, 3991356, 4989195, 6652260, 9978390, 19956780]

約数ペア:

[(1, 19956780), (2, 9978390), (3, 6652260), (4, 4989195), (5, 3991356), (6, 3326130), (9, 2217420), (10, 1995678), (12, 1663065), (15, 1330452), (18, 1108710), (20, 997839), (27, 739140), (30, 665226), (36, 554355), (45, 443484), (54, 369570), (60, 332613), (81, 246380), (90, 221742), (97, 205740), (108, 184785), (127, 157140), (135, 147828), (162, 123190), (180, 110871), (194, 102870), (254, 78570), (270, 73914), (291, 68580), (324, 61595), (381, 52380), (388, 51435), (405, 49276), (485, 41148), (508, 39285), (540, 36957), (582, 34290), (635, 31428), (762, 26190), (810, 24638), (873, 22860), (970, 20574), (1143, 17460), (1164, 17145), (1270, 15714), (1455, 13716), (1524, 13095), (1620, 12319), (1746, 11430), (1905, 10476), (1940, 10287), (2286, 8730), (2540, 7857), (2619, 7620), (2910, 6858), (3429, 5820), (3492, 5715), (3810, 5238), (4365, 4572)]