21656320

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2417}}^1$

素因数の和:2445

約数の個数: 72

約数和(自身を含む): 59308704

約数和(自身を除く): 37652384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 2417, 4480, 4834, 8960, 9668, 12085, 16919, 19336, 24170, 33838, 38672, 48340, 67676, 77344, 84595, 96680, 135352, 154688, 169190, 193360, 270704, 309376, 338380, 386720, 541408, 618752, 676760, 773440, 1082816, 1353520, 1546880, 2165632, 2707040, 3093760, 4331264, 5414080, 10828160, 21656320]

約数ペア:

[(1, 21656320), (2, 10828160), (4, 5414080), (5, 4331264), (7, 3093760), (8, 2707040), (10, 2165632), (14, 1546880), (16, 1353520), (20, 1082816), (28, 773440), (32, 676760), (35, 618752), (40, 541408), (56, 386720), (64, 338380), (70, 309376), (80, 270704), (112, 193360), (128, 169190), (140, 154688), (160, 135352), (224, 96680), (256, 84595), (280, 77344), (320, 67676), (448, 48340), (560, 38672), (640, 33838), (896, 24170), (1120, 19336), (1280, 16919), (1792, 12085), (2240, 9668), (2417, 8960), (4480, 4834)]