21307680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14797}}^1$

素因数の和:14818

約数の個数: 72

約数和(自身を含む): 72717372

約数和(自身を除く): 51409692

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14797, 29594, 44391, 59188, 73985, 88782, 118376, 133173, 147970, 177564, 221955, 236752, 266346, 295940, 355128, 443910, 473504, 532692, 591880, 665865, 710256, 887820, 1065384, 1183760, 1331730, 1420512, 1775640, 2130768, 2367520, 2663460, 3551280, 4261536, 5326920, 7102560, 10653840, 21307680]

約数ペア:

[(1, 21307680), (2, 10653840), (3, 7102560), (4, 5326920), (5, 4261536), (6, 3551280), (8, 2663460), (9, 2367520), (10, 2130768), (12, 1775640), (15, 1420512), (16, 1331730), (18, 1183760), (20, 1065384), (24, 887820), (30, 710256), (32, 665865), (36, 591880), (40, 532692), (45, 473504), (48, 443910), (60, 355128), (72, 295940), (80, 266346), (90, 236752), (96, 221955), (120, 177564), (144, 147970), (160, 133173), (180, 118376), (240, 88782), (288, 73985), (360, 59188), (480, 44391), (720, 29594), (1440, 14797)]