18342220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:167

約数の個数: 96

約数和(自身を含む): 45158400

約数和(自身を除く): 26816180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 47, 52, 65, 76, 79, 94, 95, 130, 158, 188, 190, 235, 247, 260, 316, 380, 395, 470, 494, 611, 790, 893, 940, 988, 1027, 1222, 1235, 1501, 1580, 1786, 2054, 2444, 2470, 3002, 3055, 3572, 3713, 4108, 4465, 4940, 5135, 6004, 6110, 7426, 7505, 8930, 10270, 11609, 12220, 14852, 15010, 17860, 18565, 19513, 20540, 23218, 30020, 37130, 39026, 46436, 48269, 58045, 70547, 74260, 78052, 96538, 97565, 116090, 141094, 193076, 195130, 232180, 241345, 282188, 352735, 390260, 482690, 705470, 917111, 965380, 1410940, 1834222, 3668444, 4585555, 9171110, 18342220]

約数ペア:

[(1, 18342220), (2, 9171110), (4, 4585555), (5, 3668444), (10, 1834222), (13, 1410940), (19, 965380), (20, 917111), (26, 705470), (38, 482690), (47, 390260), (52, 352735), (65, 282188), (76, 241345), (79, 232180), (94, 195130), (95, 193076), (130, 141094), (158, 116090), (188, 97565), (190, 96538), (235, 78052), (247, 74260), (260, 70547), (316, 58045), (380, 48269), (395, 46436), (470, 39026), (494, 37130), (611, 30020), (790, 23218), (893, 20540), (940, 19513), (988, 18565), (1027, 17860), (1222, 15010), (1235, 14852), (1501, 12220), (1580, 11609), (1786, 10270), (2054, 8930), (2444, 7505), (2470, 7426), (3002, 6110), (3055, 6004), (3572, 5135), (3713, 4940), (4108, 4465)]