21202560

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{409}}^1$

素因数の和:440

約数の個数: 160

約数和(自身を含む): 75903300

約数和(自身を除く): 54700740

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, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 405, 409, 432, 480, 540, 576, 640, 648, 720, 810, 818, 864, 960, 1080, 1152, 1227, 1296, 1440, 1620, 1636, 1728, 1920, 2045, 2160, 2454, 2592, 2880, 3240, 3272, 3456, 3681, 4090, 4320, 4908, 5184, 5760, 6135, 6480, 6544, 7362, 8180, 8640, 9816, 10368, 11043, 12270, 12960, 13088, 14724, 16360, 17280, 18405, 19632, 22086, 24540, 25920, 26176, 29448, 32720, 33129, 36810, 39264, 44172, 49080, 51840, 52352, 55215, 58896, 65440, 66258, 73620, 78528, 88344, 98160, 110430, 117792, 130880, 132516, 147240, 157056, 165645, 176688, 196320, 220860, 235584, 261760, 265032, 294480, 331290, 353376, 392640, 441720, 471168, 530064, 588960, 662580, 706752, 785280, 883440, 1060128, 1177920, 1325160, 1413504, 1766880, 2120256, 2355840, 2650320, 3533760, 4240512, 5300640, 7067520, 10601280, 21202560]

約数ペア:

[(1, 21202560), (2, 10601280), (3, 7067520), (4, 5300640), (5, 4240512), (6, 3533760), (8, 2650320), (9, 2355840), (10, 2120256), (12, 1766880), (15, 1413504), (16, 1325160), (18, 1177920), (20, 1060128), (24, 883440), (27, 785280), (30, 706752), (32, 662580), (36, 588960), (40, 530064), (45, 471168), (48, 441720), (54, 392640), (60, 353376), (64, 331290), (72, 294480), (80, 265032), (81, 261760), (90, 235584), (96, 220860), (108, 196320), (120, 176688), (128, 165645), (135, 157056), (144, 147240), (160, 132516), (162, 130880), (180, 117792), (192, 110430), (216, 98160), (240, 88344), (270, 78528), (288, 73620), (320, 66258), (324, 65440), (360, 58896), (384, 55215), (405, 52352), (409, 51840), (432, 49080), (480, 44172), (540, 39264), (576, 36810), (640, 33129), (648, 32720), (720, 29448), (810, 26176), (818, 25920), (864, 24540), (960, 22086), (1080, 19632), (1152, 18405), (1227, 17280), (1296, 16360), (1440, 14724), (1620, 13088), (1636, 12960), (1728, 12270), (1920, 11043), (2045, 10368), (2160, 9816), (2454, 8640), (2592, 8180), (2880, 7362), (3240, 6544), (3272, 6480), (3456, 6135), (3681, 5760), (4090, 5184), (4320, 4908)]