81066880

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7451}}^1$

素因数の和:7487

約数の個数: 64

約数和(自身を含む): 205228080

約数和(自身を除く): 124161200

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 7451, 10880, 14902, 29804, 37255, 59608, 74510, 119216, 126667, 149020, 238432, 253334, 298040, 476864, 506668, 596080, 633335, 953728, 1013336, 1192160, 1266670, 2026672, 2384320, 2533340, 4053344, 4768640, 5066680, 8106688, 10133360, 16213376, 20266720, 40533440, 81066880]

約数ペア:

[(1, 81066880), (2, 40533440), (4, 20266720), (5, 16213376), (8, 10133360), (10, 8106688), (16, 5066680), (17, 4768640), (20, 4053344), (32, 2533340), (34, 2384320), (40, 2026672), (64, 1266670), (68, 1192160), (80, 1013336), (85, 953728), (128, 633335), (136, 596080), (160, 506668), (170, 476864), (272, 298040), (320, 253334), (340, 238432), (544, 149020), (640, 126667), (680, 119216), (1088, 74510), (1360, 59608), (2176, 37255), (2720, 29804), (5440, 14902), (7451, 10880)]