81560640

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 224

約数和(自身を含む): 302849280

約数和(自身を除く): 221288640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 53, 56, 60, 64, 70, 80, 84, 96, 105, 106, 112, 120, 140, 159, 160, 168, 192, 210, 212, 224, 229, 240, 265, 280, 318, 320, 336, 371, 420, 424, 448, 458, 480, 530, 560, 636, 672, 687, 742, 795, 840, 848, 916, 960, 1060, 1113, 1120, 1145, 1272, 1344, 1374, 1484, 1590, 1603, 1680, 1696, 1832, 1855, 2120, 2226, 2240, 2290, 2544, 2748, 2968, 3180, 3206, 3360, 3392, 3435, 3664, 3710, 4240, 4452, 4580, 4809, 5088, 5496, 5565, 5936, 6360, 6412, 6720, 6870, 7328, 7420, 8015, 8480, 8904, 9160, 9618, 10176, 10992, 11130, 11872, 12137, 12720, 12824, 13740, 14656, 14840, 16030, 16960, 17808, 18320, 19236, 21984, 22260, 23744, 24045, 24274, 25440, 25648, 27480, 29680, 32060, 35616, 36411, 36640, 38472, 43968, 44520, 48090, 48548, 50880, 51296, 54960, 59360, 60685, 64120, 71232, 72822, 73280, 76944, 84959, 89040, 96180, 97096, 102592, 109920, 118720, 121370, 128240, 145644, 153888, 169918, 178080, 182055, 192360, 194192, 219840, 242740, 254877, 256480, 291288, 307776, 339836, 356160, 364110, 384720, 388384, 424795, 485480, 509754, 512960, 582576, 679672, 728220, 769440, 776768, 849590, 970960, 1019508, 1165152, 1274385, 1359344, 1456440, 1538880, 1699180, 1941920, 2039016, 2330304, 2548770, 2718688, 2912880, 3398360, 3883840, 4078032, 5097540, 5437376, 5825760, 6796720, 8156064, 10195080, 11651520, 13593440, 16312128, 20390160, 27186880, 40780320, 81560640]

約数ペア:

[(1, 81560640), (2, 40780320), (3, 27186880), (4, 20390160), (5, 16312128), (6, 13593440), (7, 11651520), (8, 10195080), (10, 8156064), (12, 6796720), (14, 5825760), (15, 5437376), (16, 5097540), (20, 4078032), (21, 3883840), (24, 3398360), (28, 2912880), (30, 2718688), (32, 2548770), (35, 2330304), (40, 2039016), (42, 1941920), (48, 1699180), (53, 1538880), (56, 1456440), (60, 1359344), (64, 1274385), (70, 1165152), (80, 1019508), (84, 970960), (96, 849590), (105, 776768), (106, 769440), (112, 728220), (120, 679672), (140, 582576), (159, 512960), (160, 509754), (168, 485480), (192, 424795), (210, 388384), (212, 384720), (224, 364110), (229, 356160), (240, 339836), (265, 307776), (280, 291288), (318, 256480), (320, 254877), (336, 242740), (371, 219840), (420, 194192), (424, 192360), (448, 182055), (458, 178080), (480, 169918), (530, 153888), (560, 145644), (636, 128240), (672, 121370), (687, 118720), (742, 109920), (795, 102592), (840, 97096), (848, 96180), (916, 89040), (960, 84959), (1060, 76944), (1113, 73280), (1120, 72822), (1145, 71232), (1272, 64120), (1344, 60685), (1374, 59360), (1484, 54960), (1590, 51296), (1603, 50880), (1680, 48548), (1696, 48090), (1832, 44520), (1855, 43968), (2120, 38472), (2226, 36640), (2240, 36411), (2290, 35616), (2544, 32060), (2748, 29680), (2968, 27480), (3180, 25648), (3206, 25440), (3360, 24274), (3392, 24045), (3435, 23744), (3664, 22260), (3710, 21984), (4240, 19236), (4452, 18320), (4580, 17808), (4809, 16960), (5088, 16030), (5496, 14840), (5565, 14656), (5936, 13740), (6360, 12824), (6412, 12720), (6720, 12137), (6870, 11872), (7328, 11130), (7420, 10992), (8015, 10176), (8480, 9618), (8904, 9160)]