19997804160

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3471841}}^1$

素因数の和:3471866

約数の個数: 96

約数和(自身を含む): 69054937380

約数和(自身を除く): 49057133220

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, 5760, 3471841, 6943682, 10415523, 13887364, 17359205, 20831046, 27774728, 31246569, 34718410, 41662092, 52077615, 55549456, 62493138, 69436820, 83324184, 104155230, 111098912, 124986276, 138873640, 156232845, 166648368, 208310460, 222197824, 249972552, 277747280, 312465690, 333296736, 416620920, 444395648, 499945104, 555494560, 624931380, 666593472, 833241840, 999890208, 1110989120, 1249862760, 1333186944, 1666483680, 1999780416, 2221978240, 2499725520, 3332967360, 3999560832, 4999451040, 6665934720, 9998902080, 19997804160]

約数ペア:

[(1, 19997804160), (2, 9998902080), (3, 6665934720), (4, 4999451040), (5, 3999560832), (6, 3332967360), (8, 2499725520), (9, 2221978240), (10, 1999780416), (12, 1666483680), (15, 1333186944), (16, 1249862760), (18, 1110989120), (20, 999890208), (24, 833241840), (30, 666593472), (32, 624931380), (36, 555494560), (40, 499945104), (45, 444395648), (48, 416620920), (60, 333296736), (64, 312465690), (72, 277747280), (80, 249972552), (90, 222197824), (96, 208310460), (120, 166648368), (128, 156232845), (144, 138873640), (160, 124986276), (180, 111098912), (192, 104155230), (240, 83324184), (288, 69436820), (320, 62493138), (360, 55549456), (384, 52077615), (480, 41662092), (576, 34718410), (640, 31246569), (720, 27774728), (960, 20831046), (1152, 17359205), (1440, 13887364), (1920, 10415523), (2880, 6943682), (5760, 3471841)]