21394080

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:283

約数の個数: 144

約数和(自身を含む): 74299680

約数和(自身を除く): 52905600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 83, 90, 96, 120, 144, 160, 166, 179, 180, 240, 249, 288, 332, 358, 360, 415, 480, 498, 537, 664, 716, 720, 747, 830, 895, 996, 1074, 1245, 1328, 1432, 1440, 1494, 1611, 1660, 1790, 1992, 2148, 2490, 2656, 2685, 2864, 2988, 3222, 3320, 3580, 3735, 3984, 4296, 4980, 5370, 5728, 5976, 6444, 6640, 7160, 7470, 7968, 8055, 8592, 9960, 10740, 11952, 12888, 13280, 14320, 14857, 14940, 16110, 17184, 19920, 21480, 23904, 25776, 28640, 29714, 29880, 32220, 39840, 42960, 44571, 51552, 59428, 59760, 64440, 74285, 85920, 89142, 118856, 119520, 128880, 133713, 148570, 178284, 222855, 237712, 257760, 267426, 297140, 356568, 445710, 475424, 534852, 594280, 668565, 713136, 891420, 1069704, 1188560, 1337130, 1426272, 1782840, 2139408, 2377120, 2674260, 3565680, 4278816, 5348520, 7131360, 10697040, 21394080]

約数ペア:

[(1, 21394080), (2, 10697040), (3, 7131360), (4, 5348520), (5, 4278816), (6, 3565680), (8, 2674260), (9, 2377120), (10, 2139408), (12, 1782840), (15, 1426272), (16, 1337130), (18, 1188560), (20, 1069704), (24, 891420), (30, 713136), (32, 668565), (36, 594280), (40, 534852), (45, 475424), (48, 445710), (60, 356568), (72, 297140), (80, 267426), (83, 257760), (90, 237712), (96, 222855), (120, 178284), (144, 148570), (160, 133713), (166, 128880), (179, 119520), (180, 118856), (240, 89142), (249, 85920), (288, 74285), (332, 64440), (358, 59760), (360, 59428), (415, 51552), (480, 44571), (498, 42960), (537, 39840), (664, 32220), (716, 29880), (720, 29714), (747, 28640), (830, 25776), (895, 23904), (996, 21480), (1074, 19920), (1245, 17184), (1328, 16110), (1432, 14940), (1440, 14857), (1494, 14320), (1611, 13280), (1660, 12888), (1790, 11952), (1992, 10740), (2148, 9960), (2490, 8592), (2656, 8055), (2685, 7968), (2864, 7470), (2988, 7160), (3222, 6640), (3320, 6444), (3580, 5976), (3735, 5728), (3984, 5370), (4296, 4980)]