20892760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37168040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 31, 35, 40, 56, 58, 62, 70, 83, 116, 124, 140, 145, 155, 166, 203, 217, 232, 248, 280, 290, 310, 332, 406, 415, 434, 580, 581, 620, 664, 812, 830, 868, 899, 1015, 1085, 1160, 1162, 1240, 1624, 1660, 1736, 1798, 2030, 2170, 2324, 2407, 2573, 2905, 3320, 3596, 4060, 4340, 4495, 4648, 4814, 5146, 5810, 6293, 7192, 8120, 8680, 8990, 9628, 10292, 11620, 12035, 12586, 12865, 16849, 17980, 18011, 19256, 20584, 23240, 24070, 25172, 25730, 31465, 33698, 35960, 36022, 48140, 50344, 51460, 62930, 67396, 72044, 74617, 84245, 90055, 96280, 102920, 125860, 134792, 144088, 149234, 168490, 180110, 251720, 298468, 336980, 360220, 373085, 522319, 596936, 673960, 720440, 746170, 1044638, 1492340, 2089276, 2611595, 2984680, 4178552, 5223190, 10446380, 20892760]

約数ペア:

[(1, 20892760), (2, 10446380), (4, 5223190), (5, 4178552), (7, 2984680), (8, 2611595), (10, 2089276), (14, 1492340), (20, 1044638), (28, 746170), (29, 720440), (31, 673960), (35, 596936), (40, 522319), (56, 373085), (58, 360220), (62, 336980), (70, 298468), (83, 251720), (116, 180110), (124, 168490), (140, 149234), (145, 144088), (155, 134792), (166, 125860), (203, 102920), (217, 96280), (232, 90055), (248, 84245), (280, 74617), (290, 72044), (310, 67396), (332, 62930), (406, 51460), (415, 50344), (434, 48140), (580, 36022), (581, 35960), (620, 33698), (664, 31465), (812, 25730), (830, 25172), (868, 24070), (899, 23240), (1015, 20584), (1085, 19256), (1160, 18011), (1162, 17980), (1240, 16849), (1624, 12865), (1660, 12586), (1736, 12035), (1798, 11620), (2030, 10292), (2170, 9628), (2324, 8990), (2407, 8680), (2573, 8120), (2905, 7192), (3320, 6293), (3596, 5810), (4060, 5146), (4340, 4814), (4495, 4648)]