19609920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1$

素因数の和:653

約数の個数: 168

約数和(自身を含む): 73700640

約数和(自身を除く): 54090720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 619, 660, 704, 720, 792, 880, 960, 990, 1056, 1238, 1320, 1440, 1584, 1760, 1857, 1980, 2112, 2476, 2640, 2880, 3095, 3168, 3520, 3714, 3960, 4952, 5280, 5571, 6190, 6336, 6809, 7428, 7920, 9285, 9904, 10560, 11142, 12380, 13618, 14856, 15840, 18570, 19808, 20427, 22284, 24760, 27236, 27855, 29712, 31680, 34045, 37140, 39616, 40854, 44568, 49520, 54472, 55710, 59424, 61281, 68090, 74280, 81708, 89136, 99040, 102135, 108944, 111420, 118848, 122562, 136180, 148560, 163416, 178272, 198080, 204270, 217888, 222840, 245124, 272360, 297120, 306405, 326832, 356544, 408540, 435776, 445680, 490248, 544720, 594240, 612810, 653664, 817080, 891360, 980496, 1089440, 1225620, 1307328, 1634160, 1782720, 1960992, 2178880, 2451240, 3268320, 3921984, 4902480, 6536640, 9804960, 19609920]

約数ペア:

[(1, 19609920), (2, 9804960), (3, 6536640), (4, 4902480), (5, 3921984), (6, 3268320), (8, 2451240), (9, 2178880), (10, 1960992), (11, 1782720), (12, 1634160), (15, 1307328), (16, 1225620), (18, 1089440), (20, 980496), (22, 891360), (24, 817080), (30, 653664), (32, 612810), (33, 594240), (36, 544720), (40, 490248), (44, 445680), (45, 435776), (48, 408540), (55, 356544), (60, 326832), (64, 306405), (66, 297120), (72, 272360), (80, 245124), (88, 222840), (90, 217888), (96, 204270), (99, 198080), (110, 178272), (120, 163416), (132, 148560), (144, 136180), (160, 122562), (165, 118848), (176, 111420), (180, 108944), (192, 102135), (198, 99040), (220, 89136), (240, 81708), (264, 74280), (288, 68090), (320, 61281), (330, 59424), (352, 55710), (360, 54472), (396, 49520), (440, 44568), (480, 40854), (495, 39616), (528, 37140), (576, 34045), (619, 31680), (660, 29712), (704, 27855), (720, 27236), (792, 24760), (880, 22284), (960, 20427), (990, 19808), (1056, 18570), (1238, 15840), (1320, 14856), (1440, 13618), (1584, 12380), (1760, 11142), (1857, 10560), (1980, 9904), (2112, 9285), (2476, 7920), (2640, 7428), (2880, 6809), (3095, 6336), (3168, 6190), (3520, 5571), (3714, 5280), (3960, 4952)]