21563280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:238

約数の個数: 160

約数和(自身を含む): 75888000

約数和(自身を除く): 54324720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 67, 72, 80, 90, 108, 120, 134, 135, 144, 149, 180, 201, 216, 240, 268, 270, 298, 335, 360, 402, 432, 447, 536, 540, 596, 603, 670, 720, 745, 804, 894, 1005, 1072, 1080, 1192, 1206, 1340, 1341, 1490, 1608, 1788, 1809, 2010, 2160, 2235, 2384, 2412, 2680, 2682, 2980, 3015, 3216, 3576, 3618, 4020, 4023, 4470, 4824, 5360, 5364, 5960, 6030, 6705, 7152, 7236, 8040, 8046, 8940, 9045, 9648, 9983, 10728, 11920, 12060, 13410, 14472, 16080, 16092, 17880, 18090, 19966, 20115, 21456, 24120, 26820, 28944, 29949, 32184, 35760, 36180, 39932, 40230, 48240, 49915, 53640, 59898, 64368, 72360, 79864, 80460, 89847, 99830, 107280, 119796, 144720, 149745, 159728, 160920, 179694, 199660, 239592, 269541, 299490, 321840, 359388, 399320, 449235, 479184, 539082, 598980, 718776, 798640, 898470, 1078164, 1197960, 1347705, 1437552, 1796940, 2156328, 2395920, 2695410, 3593880, 4312656, 5390820, 7187760, 10781640, 21563280]

約数ペア:

[(1, 21563280), (2, 10781640), (3, 7187760), (4, 5390820), (5, 4312656), (6, 3593880), (8, 2695410), (9, 2395920), (10, 2156328), (12, 1796940), (15, 1437552), (16, 1347705), (18, 1197960), (20, 1078164), (24, 898470), (27, 798640), (30, 718776), (36, 598980), (40, 539082), (45, 479184), (48, 449235), (54, 399320), (60, 359388), (67, 321840), (72, 299490), (80, 269541), (90, 239592), (108, 199660), (120, 179694), (134, 160920), (135, 159728), (144, 149745), (149, 144720), (180, 119796), (201, 107280), (216, 99830), (240, 89847), (268, 80460), (270, 79864), (298, 72360), (335, 64368), (360, 59898), (402, 53640), (432, 49915), (447, 48240), (536, 40230), (540, 39932), (596, 36180), (603, 35760), (670, 32184), (720, 29949), (745, 28944), (804, 26820), (894, 24120), (1005, 21456), (1072, 20115), (1080, 19966), (1192, 18090), (1206, 17880), (1340, 16092), (1341, 16080), (1490, 14472), (1608, 13410), (1788, 12060), (1809, 11920), (2010, 10728), (2160, 9983), (2235, 9648), (2384, 9045), (2412, 8940), (2680, 8046), (2682, 8040), (2980, 7236), (3015, 7152), (3216, 6705), (3576, 6030), (3618, 5960), (4020, 5364), (4023, 5360), (4470, 4824)]