20995740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{659}}^1$

素因数の和:736

約数の個数: 96

約数和(自身を含む): 66528000

約数和(自身を除く): 45532260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 59, 60, 90, 108, 118, 135, 177, 180, 236, 270, 295, 354, 531, 540, 590, 659, 708, 885, 1062, 1180, 1318, 1593, 1770, 1977, 2124, 2636, 2655, 3186, 3295, 3540, 3954, 5310, 5931, 6372, 6590, 7908, 7965, 9885, 10620, 11862, 13180, 15930, 17793, 19770, 23724, 29655, 31860, 35586, 38881, 39540, 59310, 71172, 77762, 88965, 116643, 118620, 155524, 177930, 194405, 233286, 349929, 355860, 388810, 466572, 583215, 699858, 777620, 1049787, 1166430, 1399716, 1749645, 2099574, 2332860, 3499290, 4199148, 5248935, 6998580, 10497870, 20995740]

約数ペア:

[(1, 20995740), (2, 10497870), (3, 6998580), (4, 5248935), (5, 4199148), (6, 3499290), (9, 2332860), (10, 2099574), (12, 1749645), (15, 1399716), (18, 1166430), (20, 1049787), (27, 777620), (30, 699858), (36, 583215), (45, 466572), (54, 388810), (59, 355860), (60, 349929), (90, 233286), (108, 194405), (118, 177930), (135, 155524), (177, 118620), (180, 116643), (236, 88965), (270, 77762), (295, 71172), (354, 59310), (531, 39540), (540, 38881), (590, 35586), (659, 31860), (708, 29655), (885, 23724), (1062, 19770), (1180, 17793), (1318, 15930), (1593, 13180), (1770, 11862), (1977, 10620), (2124, 9885), (2636, 7965), (2655, 7908), (3186, 6590), (3295, 6372), (3540, 5931), (3954, 5310)]