21280233960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1906831}}^1$

素因数の和:1906879

約数の個数: 96

約数和(自身を含む): 71391790080

約数和(自身を除く): 50111556120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 2232, 2790, 3720, 5580, 11160, 1906831, 3813662, 5720493, 7627324, 9534155, 11440986, 15254648, 17161479, 19068310, 22881972, 28602465, 34322958, 38136620, 45763944, 57204930, 59111761, 68645916, 76273240, 85807395, 114409860, 118223522, 137291832, 171614790, 177335283, 228819720, 236447044, 295558805, 343229580, 354670566, 472894088, 532005849, 591117610, 686459160, 709341132, 886676415, 1064011698, 1182235220, 1418682264, 1773352830, 2128023396, 2364470440, 2660029245, 3546705660, 4256046792, 5320058490, 7093411320, 10640116980, 21280233960]

約数ペア:

[(1, 21280233960), (2, 10640116980), (3, 7093411320), (4, 5320058490), (5, 4256046792), (6, 3546705660), (8, 2660029245), (9, 2364470440), (10, 2128023396), (12, 1773352830), (15, 1418682264), (18, 1182235220), (20, 1064011698), (24, 886676415), (30, 709341132), (31, 686459160), (36, 591117610), (40, 532005849), (45, 472894088), (60, 354670566), (62, 343229580), (72, 295558805), (90, 236447044), (93, 228819720), (120, 177335283), (124, 171614790), (155, 137291832), (180, 118223522), (186, 114409860), (248, 85807395), (279, 76273240), (310, 68645916), (360, 59111761), (372, 57204930), (465, 45763944), (558, 38136620), (620, 34322958), (744, 28602465), (930, 22881972), (1116, 19068310), (1240, 17161479), (1395, 15254648), (1860, 11440986), (2232, 9534155), (2790, 7627324), (3720, 5720493), (5580, 3813662), (11160, 1906831)]