18522720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:717

約数の個数: 144

約数和(自身を含む): 66633840

約数和(自身を除く): 48111120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 608, 677, 684, 720, 760, 855, 912, 1140, 1354, 1368, 1440, 1520, 1710, 1824, 2031, 2280, 2708, 2736, 3040, 3385, 3420, 4062, 4560, 5416, 5472, 6093, 6770, 6840, 8124, 9120, 10155, 10832, 12186, 12863, 13540, 13680, 16248, 20310, 21664, 24372, 25726, 27080, 27360, 30465, 32496, 38589, 40620, 48744, 51452, 54160, 60930, 64315, 64992, 77178, 81240, 97488, 102904, 108320, 115767, 121860, 128630, 154356, 162480, 192945, 194976, 205808, 231534, 243720, 257260, 308712, 324960, 385890, 411616, 463068, 487440, 514520, 578835, 617424, 771780, 926136, 974880, 1029040, 1157670, 1234848, 1543560, 1852272, 2058080, 2315340, 3087120, 3704544, 4630680, 6174240, 9261360, 18522720]

約数ペア:

[(1, 18522720), (2, 9261360), (3, 6174240), (4, 4630680), (5, 3704544), (6, 3087120), (8, 2315340), (9, 2058080), (10, 1852272), (12, 1543560), (15, 1234848), (16, 1157670), (18, 1029040), (19, 974880), (20, 926136), (24, 771780), (30, 617424), (32, 578835), (36, 514520), (38, 487440), (40, 463068), (45, 411616), (48, 385890), (57, 324960), (60, 308712), (72, 257260), (76, 243720), (80, 231534), (90, 205808), (95, 194976), (96, 192945), (114, 162480), (120, 154356), (144, 128630), (152, 121860), (160, 115767), (171, 108320), (180, 102904), (190, 97488), (228, 81240), (240, 77178), (285, 64992), (288, 64315), (304, 60930), (342, 54160), (360, 51452), (380, 48744), (456, 40620), (480, 38589), (570, 32496), (608, 30465), (677, 27360), (684, 27080), (720, 25726), (760, 24372), (855, 21664), (912, 20310), (1140, 16248), (1354, 13680), (1368, 13540), (1440, 12863), (1520, 12186), (1710, 10832), (1824, 10155), (2031, 9120), (2280, 8124), (2708, 6840), (2736, 6770), (3040, 6093), (3385, 5472), (3420, 5416), (4062, 4560)]