81536640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{42467}}^1$

素因数の和:42489

約数の個数: 64

約数和(自身を含む): 259904160

約数和(自身を除く): 178367520

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, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 42467, 84934, 127401, 169868, 212335, 254802, 339736, 424670, 509604, 637005, 679472, 849340, 1019208, 1274010, 1358944, 1698680, 2038416, 2548020, 2717888, 3397360, 4076832, 5096040, 5435776, 6794720, 8153664, 10192080, 13589440, 16307328, 20384160, 27178880, 40768320, 81536640]

約数ペア:

[(1, 81536640), (2, 40768320), (3, 27178880), (4, 20384160), (5, 16307328), (6, 13589440), (8, 10192080), (10, 8153664), (12, 6794720), (15, 5435776), (16, 5096040), (20, 4076832), (24, 3397360), (30, 2717888), (32, 2548020), (40, 2038416), (48, 1698680), (60, 1358944), (64, 1274010), (80, 1019208), (96, 849340), (120, 679472), (128, 637005), (160, 509604), (192, 424670), (240, 339736), (320, 254802), (384, 212335), (480, 169868), (640, 127401), (960, 84934), (1920, 42467)]