217861440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{991}}^1$

素因数の和:1240

約数の個数: 112

約数和(自身を含む): 695431680

約数和(自身を除く): 477570240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 229, 240, 320, 458, 480, 687, 916, 960, 991, 1145, 1374, 1832, 1982, 2290, 2748, 2973, 3435, 3664, 3964, 4580, 4955, 5496, 5946, 6870, 7328, 7928, 9160, 9910, 10992, 11892, 13740, 14656, 14865, 15856, 18320, 19820, 21984, 23784, 27480, 29730, 31712, 36640, 39640, 43968, 47568, 54960, 59460, 63424, 73280, 79280, 95136, 109920, 118920, 158560, 190272, 219840, 226939, 237840, 317120, 453878, 475680, 680817, 907756, 951360, 1134695, 1361634, 1815512, 2269390, 2723268, 3404085, 3631024, 4538780, 5446536, 6808170, 7262048, 9077560, 10893072, 13616340, 14524096, 18155120, 21786144, 27232680, 36310240, 43572288, 54465360, 72620480, 108930720, 217861440]

約数ペア:

[(1, 217861440), (2, 108930720), (3, 72620480), (4, 54465360), (5, 43572288), (6, 36310240), (8, 27232680), (10, 21786144), (12, 18155120), (15, 14524096), (16, 13616340), (20, 10893072), (24, 9077560), (30, 7262048), (32, 6808170), (40, 5446536), (48, 4538780), (60, 3631024), (64, 3404085), (80, 2723268), (96, 2269390), (120, 1815512), (160, 1361634), (192, 1134695), (229, 951360), (240, 907756), (320, 680817), (458, 475680), (480, 453878), (687, 317120), (916, 237840), (960, 226939), (991, 219840), (1145, 190272), (1374, 158560), (1832, 118920), (1982, 109920), (2290, 95136), (2748, 79280), (2973, 73280), (3435, 63424), (3664, 59460), (3964, 54960), (4580, 47568), (4955, 43968), (5496, 39640), (5946, 36640), (6870, 31712), (7328, 29730), (7928, 27480), (9160, 23784), (9910, 21984), (10992, 19820), (11892, 18320), (13740, 15856), (14656, 14865)]