21870720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3797}}^1$

素因数の和:3822

約数の個数: 96

約数和(自身を含む): 75542220

約数和(自身を除く): 53671500

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, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3797, 5760, 7594, 11391, 15188, 18985, 22782, 30376, 34173, 37970, 45564, 56955, 60752, 68346, 75940, 91128, 113910, 121504, 136692, 151880, 170865, 182256, 227820, 243008, 273384, 303760, 341730, 364512, 455640, 486016, 546768, 607520, 683460, 729024, 911280, 1093536, 1215040, 1366920, 1458048, 1822560, 2187072, 2430080, 2733840, 3645120, 4374144, 5467680, 7290240, 10935360, 21870720]

約数ペア:

[(1, 21870720), (2, 10935360), (3, 7290240), (4, 5467680), (5, 4374144), (6, 3645120), (8, 2733840), (9, 2430080), (10, 2187072), (12, 1822560), (15, 1458048), (16, 1366920), (18, 1215040), (20, 1093536), (24, 911280), (30, 729024), (32, 683460), (36, 607520), (40, 546768), (45, 486016), (48, 455640), (60, 364512), (64, 341730), (72, 303760), (80, 273384), (90, 243008), (96, 227820), (120, 182256), (128, 170865), (144, 151880), (160, 136692), (180, 121504), (192, 113910), (240, 91128), (288, 75940), (320, 68346), (360, 60752), (384, 56955), (480, 45564), (576, 37970), (640, 34173), (720, 30376), (960, 22782), (1152, 18985), (1440, 15188), (1920, 11391), (2880, 7594), (3797, 5760)]