19836241880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1187}}^1\times {\mathrm{4591}}^1$

素因数の和:5809

約数の個数: 128

約数和(自身を含む): 54989383680

約数和(自身を除く): 35153141800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1187, 1820, 2374, 3640, 4591, 4748, 5935, 8309, 9182, 9496, 11870, 15431, 16618, 18364, 22955, 23740, 30862, 32137, 33236, 36728, 41545, 45910, 47480, 59683, 61724, 64274, 66472, 77155, 83090, 91820, 108017, 119366, 123448, 128548, 154310, 160685, 166180, 183640, 216034, 238732, 257096, 298415, 308620, 321370, 332360, 417781, 432068, 477464, 540085, 596830, 617240, 642740, 835562, 864136, 1080170, 1193660, 1285480, 1671124, 2088905, 2160340, 2387320, 3342248, 4177810, 4320680, 5449517, 8355620, 10899034, 16711240, 21798068, 27247585, 38146619, 43596136, 54495170, 70843721, 76293238, 108990340, 141687442, 152586476, 190733095, 217980680, 283374884, 305172952, 354218605, 381466190, 495906047, 566749768, 708437210, 762932380, 991812094, 1416874420, 1525864760, 1983624188, 2479530235, 2833748840, 3967248376, 4959060470, 9918120940, 19836241880]

約数ペア:

[(1, 19836241880), (2, 9918120940), (4, 4959060470), (5, 3967248376), (7, 2833748840), (8, 2479530235), (10, 1983624188), (13, 1525864760), (14, 1416874420), (20, 991812094), (26, 762932380), (28, 708437210), (35, 566749768), (40, 495906047), (52, 381466190), (56, 354218605), (65, 305172952), (70, 283374884), (91, 217980680), (104, 190733095), (130, 152586476), (140, 141687442), (182, 108990340), (260, 76293238), (280, 70843721), (364, 54495170), (455, 43596136), (520, 38146619), (728, 27247585), (910, 21798068), (1187, 16711240), (1820, 10899034), (2374, 8355620), (3640, 5449517), (4591, 4320680), (4748, 4177810), (5935, 3342248), (8309, 2387320), (9182, 2160340), (9496, 2088905), (11870, 1671124), (15431, 1285480), (16618, 1193660), (18364, 1080170), (22955, 864136), (23740, 835562), (30862, 642740), (32137, 617240), (33236, 596830), (36728, 540085), (41545, 477464), (45910, 432068), (47480, 417781), (59683, 332360), (61724, 321370), (64274, 308620), (66472, 298415), (77155, 257096), (83090, 238732), (91820, 216034), (108017, 183640), (119366, 166180), (123448, 160685), (128548, 154310)]