77898880

素因数分解:

$2^7\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2063}}^1$

素因数の和:2141

約数の個数: 64

約数和(自身を含む): 189475200

約数和(自身を除く): 111576320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 128, 160, 236, 295, 320, 472, 590, 640, 944, 1180, 1888, 2063, 2360, 3776, 4126, 4720, 7552, 8252, 9440, 10315, 16504, 18880, 20630, 33008, 37760, 41260, 66016, 82520, 121717, 132032, 165040, 243434, 264064, 330080, 486868, 608585, 660160, 973736, 1217170, 1320320, 1947472, 2434340, 3894944, 4868680, 7789888, 9737360, 15579776, 19474720, 38949440, 77898880]

約数ペア:

[(1, 77898880), (2, 38949440), (4, 19474720), (5, 15579776), (8, 9737360), (10, 7789888), (16, 4868680), (20, 3894944), (32, 2434340), (40, 1947472), (59, 1320320), (64, 1217170), (80, 973736), (118, 660160), (128, 608585), (160, 486868), (236, 330080), (295, 264064), (320, 243434), (472, 165040), (590, 132032), (640, 121717), (944, 82520), (1180, 66016), (1888, 41260), (2063, 37760), (2360, 33008), (3776, 20630), (4126, 18880), (4720, 16504), (7552, 10315), (8252, 9440)]