81895680

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{7109}}^1$

素因数の和:7136

約数の個数: 108

約数和(自身を含む): 283390380

約数和(自身を除く): 201494700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 7109, 11520, 14218, 21327, 28436, 35545, 42654, 56872, 63981, 71090, 85308, 106635, 113744, 127962, 142180, 170616, 213270, 227488, 255924, 284360, 319905, 341232, 426540, 454976, 511848, 568720, 639810, 682464, 853080, 909952, 1023696, 1137440, 1279620, 1364928, 1706160, 1819904, 2047392, 2274880, 2559240, 2729856, 3412320, 4094784, 4549760, 5118480, 5459712, 6824640, 8189568, 9099520, 10236960, 13649280, 16379136, 20473920, 27298560, 40947840, 81895680]

約数ペア:

[(1, 81895680), (2, 40947840), (3, 27298560), (4, 20473920), (5, 16379136), (6, 13649280), (8, 10236960), (9, 9099520), (10, 8189568), (12, 6824640), (15, 5459712), (16, 5118480), (18, 4549760), (20, 4094784), (24, 3412320), (30, 2729856), (32, 2559240), (36, 2274880), (40, 2047392), (45, 1819904), (48, 1706160), (60, 1364928), (64, 1279620), (72, 1137440), (80, 1023696), (90, 909952), (96, 853080), (120, 682464), (128, 639810), (144, 568720), (160, 511848), (180, 454976), (192, 426540), (240, 341232), (256, 319905), (288, 284360), (320, 255924), (360, 227488), (384, 213270), (480, 170616), (576, 142180), (640, 127962), (720, 113744), (768, 106635), (960, 85308), (1152, 71090), (1280, 63981), (1440, 56872), (1920, 42654), (2304, 35545), (2880, 28436), (3840, 21327), (5760, 14218), (7109, 11520)]