19581120

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{523}}^1$

素因数の和:559

約数の個数: 168

約数和(自身を含む): 72670416

約数和(自身を除く): 53089296

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 523, 576, 585, 624, 720, 780, 832, 936, 960, 1040, 1046, 1170, 1248, 1440, 1560, 1569, 1872, 2080, 2092, 2340, 2496, 2615, 2880, 3120, 3138, 3744, 4160, 4184, 4680, 4707, 5230, 6240, 6276, 6799, 7488, 7845, 8368, 9360, 9414, 10460, 12480, 12552, 13598, 15690, 16736, 18720, 18828, 20397, 20920, 23535, 25104, 27196, 31380, 33472, 33995, 37440, 37656, 40794, 41840, 47070, 50208, 54392, 61191, 62760, 67990, 75312, 81588, 83680, 94140, 100416, 101985, 108784, 122382, 125520, 135980, 150624, 163176, 167360, 188280, 203970, 217568, 244764, 251040, 271960, 301248, 305955, 326352, 376560, 407940, 435136, 489528, 502080, 543920, 611910, 652704, 753120, 815880, 979056, 1087840, 1223820, 1305408, 1506240, 1631760, 1958112, 2175680, 2447640, 3263520, 3916224, 4895280, 6527040, 9790560, 19581120]

約数ペア:

[(1, 19581120), (2, 9790560), (3, 6527040), (4, 4895280), (5, 3916224), (6, 3263520), (8, 2447640), (9, 2175680), (10, 1958112), (12, 1631760), (13, 1506240), (15, 1305408), (16, 1223820), (18, 1087840), (20, 979056), (24, 815880), (26, 753120), (30, 652704), (32, 611910), (36, 543920), (39, 502080), (40, 489528), (45, 435136), (48, 407940), (52, 376560), (60, 326352), (64, 305955), (65, 301248), (72, 271960), (78, 251040), (80, 244764), (90, 217568), (96, 203970), (104, 188280), (117, 167360), (120, 163176), (130, 150624), (144, 135980), (156, 125520), (160, 122382), (180, 108784), (192, 101985), (195, 100416), (208, 94140), (234, 83680), (240, 81588), (260, 75312), (288, 67990), (312, 62760), (320, 61191), (360, 54392), (390, 50208), (416, 47070), (468, 41840), (480, 40794), (520, 37656), (523, 37440), (576, 33995), (585, 33472), (624, 31380), (720, 27196), (780, 25104), (832, 23535), (936, 20920), (960, 20397), (1040, 18828), (1046, 18720), (1170, 16736), (1248, 15690), (1440, 13598), (1560, 12552), (1569, 12480), (1872, 10460), (2080, 9414), (2092, 9360), (2340, 8368), (2496, 7845), (2615, 7488), (2880, 6799), (3120, 6276), (3138, 6240), (3744, 5230), (4160, 4707), (4184, 4680)]