20690100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 144

約数和(自身を含む): 68051200

約数和(自身を除く): 47361100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 79, 90, 97, 100, 108, 135, 150, 158, 180, 194, 225, 237, 270, 291, 300, 316, 388, 395, 450, 474, 485, 540, 582, 675, 711, 790, 873, 900, 948, 970, 1164, 1185, 1350, 1422, 1455, 1580, 1746, 1940, 1975, 2133, 2370, 2425, 2619, 2700, 2844, 2910, 3492, 3555, 3950, 4266, 4365, 4740, 4850, 5238, 5820, 5925, 7110, 7275, 7663, 7900, 8532, 8730, 9700, 10476, 10665, 11850, 13095, 14220, 14550, 15326, 17460, 17775, 21330, 21825, 22989, 23700, 26190, 29100, 30652, 35550, 38315, 42660, 43650, 45978, 52380, 53325, 65475, 68967, 71100, 76630, 87300, 91956, 106650, 114945, 130950, 137934, 153260, 191575, 206901, 213300, 229890, 261900, 275868, 344835, 383150, 413802, 459780, 574725, 689670, 766300, 827604, 1034505, 1149450, 1379340, 1724175, 2069010, 2298900, 3448350, 4138020, 5172525, 6896700, 10345050, 20690100]

約数ペア:

[(1, 20690100), (2, 10345050), (3, 6896700), (4, 5172525), (5, 4138020), (6, 3448350), (9, 2298900), (10, 2069010), (12, 1724175), (15, 1379340), (18, 1149450), (20, 1034505), (25, 827604), (27, 766300), (30, 689670), (36, 574725), (45, 459780), (50, 413802), (54, 383150), (60, 344835), (75, 275868), (79, 261900), (90, 229890), (97, 213300), (100, 206901), (108, 191575), (135, 153260), (150, 137934), (158, 130950), (180, 114945), (194, 106650), (225, 91956), (237, 87300), (270, 76630), (291, 71100), (300, 68967), (316, 65475), (388, 53325), (395, 52380), (450, 45978), (474, 43650), (485, 42660), (540, 38315), (582, 35550), (675, 30652), (711, 29100), (790, 26190), (873, 23700), (900, 22989), (948, 21825), (970, 21330), (1164, 17775), (1185, 17460), (1350, 15326), (1422, 14550), (1455, 14220), (1580, 13095), (1746, 11850), (1940, 10665), (1975, 10476), (2133, 9700), (2370, 8730), (2425, 8532), (2619, 7900), (2700, 7663), (2844, 7275), (2910, 7110), (3492, 5925), (3555, 5820), (3950, 5238), (4266, 4850), (4365, 4740)]