21206880

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4909}}^1$

素因数の和:4933

約数の個数: 96

約数和(自身を含む): 74239200

約数和(自身を除く): 53032320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4909, 9818, 14727, 19636, 24545, 29454, 39272, 44181, 49090, 58908, 73635, 78544, 88362, 98180, 117816, 132543, 147270, 157088, 176724, 196360, 220905, 235632, 265086, 294540, 353448, 392720, 441810, 471264, 530172, 589080, 662715, 706896, 785440, 883620, 1060344, 1178160, 1325430, 1413792, 1767240, 2120688, 2356320, 2650860, 3534480, 4241376, 5301720, 7068960, 10603440, 21206880]

約数ペア:

[(1, 21206880), (2, 10603440), (3, 7068960), (4, 5301720), (5, 4241376), (6, 3534480), (8, 2650860), (9, 2356320), (10, 2120688), (12, 1767240), (15, 1413792), (16, 1325430), (18, 1178160), (20, 1060344), (24, 883620), (27, 785440), (30, 706896), (32, 662715), (36, 589080), (40, 530172), (45, 471264), (48, 441810), (54, 392720), (60, 353448), (72, 294540), (80, 265086), (90, 235632), (96, 220905), (108, 196360), (120, 176724), (135, 157088), (144, 147270), (160, 132543), (180, 117816), (216, 98180), (240, 88362), (270, 78544), (288, 73635), (360, 58908), (432, 49090), (480, 44181), (540, 39272), (720, 29454), (864, 24545), (1080, 19636), (1440, 14727), (2160, 9818), (4320, 4909)]