21949920

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{5081}}^1$

素因数の和:5105

約数の個数: 96

約数和(自身を含む): 76839840

約数和(自身を除く): 54889920

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, 5081, 10162, 15243, 20324, 25405, 30486, 40648, 45729, 50810, 60972, 76215, 81296, 91458, 101620, 121944, 137187, 152430, 162592, 182916, 203240, 228645, 243888, 274374, 304860, 365832, 406480, 457290, 487776, 548748, 609720, 685935, 731664, 812960, 914580, 1097496, 1219440, 1371870, 1463328, 1829160, 2194992, 2438880, 2743740, 3658320, 4389984, 5487480, 7316640, 10974960, 21949920]

約数ペア:

[(1, 21949920), (2, 10974960), (3, 7316640), (4, 5487480), (5, 4389984), (6, 3658320), (8, 2743740), (9, 2438880), (10, 2194992), (12, 1829160), (15, 1463328), (16, 1371870), (18, 1219440), (20, 1097496), (24, 914580), (27, 812960), (30, 731664), (32, 685935), (36, 609720), (40, 548748), (45, 487776), (48, 457290), (54, 406480), (60, 365832), (72, 304860), (80, 274374), (90, 243888), (96, 228645), (108, 203240), (120, 182916), (135, 162592), (144, 152430), (160, 137187), (180, 121944), (216, 101620), (240, 91458), (270, 81296), (288, 76215), (360, 60972), (432, 50810), (480, 45729), (540, 40648), (720, 30486), (864, 25405), (1080, 20324), (1440, 15243), (2160, 10162), (4320, 5081)]