18919680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:416

約数の個数: 144

約数和(自身を含む): 65244480

約数和(自身を除く): 46324800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 379, 384, 390, 416, 480, 520, 624, 640, 758, 768, 780, 832, 960, 1040, 1137, 1248, 1280, 1516, 1560, 1664, 1895, 1920, 2080, 2274, 2496, 3032, 3120, 3328, 3790, 3840, 4160, 4548, 4927, 4992, 5685, 6064, 6240, 7580, 8320, 9096, 9854, 9984, 11370, 12128, 12480, 14781, 15160, 16640, 18192, 19708, 22740, 24256, 24635, 24960, 29562, 30320, 36384, 39416, 45480, 48512, 49270, 49920, 59124, 60640, 72768, 73905, 78832, 90960, 97024, 98540, 118248, 121280, 145536, 147810, 157664, 181920, 197080, 236496, 242560, 291072, 295620, 315328, 363840, 394160, 472992, 485120, 591240, 630656, 727680, 788320, 945984, 1182480, 1261312, 1455360, 1576640, 1891968, 2364960, 3153280, 3783936, 4729920, 6306560, 9459840, 18919680]

約数ペア:

[(1, 18919680), (2, 9459840), (3, 6306560), (4, 4729920), (5, 3783936), (6, 3153280), (8, 2364960), (10, 1891968), (12, 1576640), (13, 1455360), (15, 1261312), (16, 1182480), (20, 945984), (24, 788320), (26, 727680), (30, 630656), (32, 591240), (39, 485120), (40, 472992), (48, 394160), (52, 363840), (60, 315328), (64, 295620), (65, 291072), (78, 242560), (80, 236496), (96, 197080), (104, 181920), (120, 157664), (128, 147810), (130, 145536), (156, 121280), (160, 118248), (192, 98540), (195, 97024), (208, 90960), (240, 78832), (256, 73905), (260, 72768), (312, 60640), (320, 59124), (379, 49920), (384, 49270), (390, 48512), (416, 45480), (480, 39416), (520, 36384), (624, 30320), (640, 29562), (758, 24960), (768, 24635), (780, 24256), (832, 22740), (960, 19708), (1040, 18192), (1137, 16640), (1248, 15160), (1280, 14781), (1516, 12480), (1560, 12128), (1664, 11370), (1895, 9984), (1920, 9854), (2080, 9096), (2274, 8320), (2496, 7580), (3032, 6240), (3120, 6064), (3328, 5685), (3790, 4992), (3840, 4927), (4160, 4548)]