19782000

素因数分解:

$2^4\times 3^2\times 5^3\times 7^1\times {\mathrm{157}}^1$

素因数の和:193

約数の個数: 240

約数和(自身を含む): 79465152

約数和(自身を除く): 59683152

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 112, 120, 125, 126, 140, 144, 150, 157, 168, 175, 180, 200, 210, 225, 240, 250, 252, 280, 300, 314, 315, 336, 350, 360, 375, 400, 420, 450, 471, 500, 504, 525, 560, 600, 628, 630, 700, 720, 750, 785, 840, 875, 900, 942, 1000, 1008, 1050, 1099, 1125, 1200, 1256, 1260, 1400, 1413, 1500, 1570, 1575, 1680, 1750, 1800, 1884, 2000, 2100, 2198, 2250, 2355, 2512, 2520, 2625, 2800, 2826, 3000, 3140, 3150, 3297, 3500, 3600, 3768, 3925, 4200, 4396, 4500, 4710, 5040, 5250, 5495, 5652, 6000, 6280, 6300, 6594, 7000, 7065, 7536, 7850, 7875, 8400, 8792, 9000, 9420, 9891, 10500, 10990, 11304, 11775, 12560, 12600, 13188, 14000, 14130, 15700, 15750, 16485, 17584, 18000, 18840, 19625, 19782, 21000, 21980, 22608, 23550, 25200, 26376, 27475, 28260, 31400, 31500, 32970, 35325, 37680, 39250, 39564, 42000, 43960, 47100, 49455, 52752, 54950, 56520, 58875, 62800, 63000, 65940, 70650, 78500, 79128, 82425, 87920, 94200, 98910, 109900, 113040, 117750, 126000, 131880, 137375, 141300, 157000, 158256, 164850, 176625, 188400, 197820, 219800, 235500, 247275, 263760, 274750, 282600, 314000, 329700, 353250, 395640, 412125, 439600, 471000, 494550, 549500, 565200, 659400, 706500, 791280, 824250, 942000, 989100, 1099000, 1236375, 1318800, 1413000, 1648500, 1978200, 2198000, 2472750, 2826000, 3297000, 3956400, 4945500, 6594000, 9891000, 19782000]

約数ペア:

[(1, 19782000), (2, 9891000), (3, 6594000), (4, 4945500), (5, 3956400), (6, 3297000), (7, 2826000), (8, 2472750), (9, 2198000), (10, 1978200), (12, 1648500), (14, 1413000), (15, 1318800), (16, 1236375), (18, 1099000), (20, 989100), (21, 942000), (24, 824250), (25, 791280), (28, 706500), (30, 659400), (35, 565200), (36, 549500), (40, 494550), (42, 471000), (45, 439600), (48, 412125), (50, 395640), (56, 353250), (60, 329700), (63, 314000), (70, 282600), (72, 274750), (75, 263760), (80, 247275), (84, 235500), (90, 219800), (100, 197820), (105, 188400), (112, 176625), (120, 164850), (125, 158256), (126, 157000), (140, 141300), (144, 137375), (150, 131880), (157, 126000), (168, 117750), (175, 113040), (180, 109900), (200, 98910), (210, 94200), (225, 87920), (240, 82425), (250, 79128), (252, 78500), (280, 70650), (300, 65940), (314, 63000), (315, 62800), (336, 58875), (350, 56520), (360, 54950), (375, 52752), (400, 49455), (420, 47100), (450, 43960), (471, 42000), (500, 39564), (504, 39250), (525, 37680), (560, 35325), (600, 32970), (628, 31500), (630, 31400), (700, 28260), (720, 27475), (750, 26376), (785, 25200), (840, 23550), (875, 22608), (900, 21980), (942, 21000), (1000, 19782), (1008, 19625), (1050, 18840), (1099, 18000), (1125, 17584), (1200, 16485), (1256, 15750), (1260, 15700), (1400, 14130), (1413, 14000), (1500, 13188), (1570, 12600), (1575, 12560), (1680, 11775), (1750, 11304), (1800, 10990), (1884, 10500), (2000, 9891), (2100, 9420), (2198, 9000), (2250, 8792), (2355, 8400), (2512, 7875), (2520, 7850), (2625, 7536), (2800, 7065), (2826, 7000), (3000, 6594), (3140, 6300), (3150, 6280), (3297, 6000), (3500, 5652), (3600, 5495), (3768, 5250), (3925, 5040), (4200, 4710), (4396, 4500)]