81135040

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1249}}^1$

素因数の和:1302

約数の個数: 112

約数和(自身を含む): 228600000

約数和(自身を除く): 147464960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 320, 406, 448, 464, 560, 580, 812, 928, 1015, 1120, 1160, 1249, 1624, 1856, 2030, 2240, 2320, 2498, 3248, 4060, 4640, 4996, 6245, 6496, 8120, 8743, 9280, 9992, 12490, 12992, 16240, 17486, 19984, 24980, 32480, 34972, 36221, 39968, 43715, 49960, 64960, 69944, 72442, 79936, 87430, 99920, 139888, 144884, 174860, 181105, 199840, 253547, 279776, 289768, 349720, 362210, 399680, 507094, 559552, 579536, 699440, 724420, 1014188, 1159072, 1267735, 1398880, 1448840, 2028376, 2318144, 2535470, 2797760, 2897680, 4056752, 5070940, 5795360, 8113504, 10141880, 11590720, 16227008, 20283760, 40567520, 81135040]

約数ペア:

[(1, 81135040), (2, 40567520), (4, 20283760), (5, 16227008), (7, 11590720), (8, 10141880), (10, 8113504), (14, 5795360), (16, 5070940), (20, 4056752), (28, 2897680), (29, 2797760), (32, 2535470), (35, 2318144), (40, 2028376), (56, 1448840), (58, 1398880), (64, 1267735), (70, 1159072), (80, 1014188), (112, 724420), (116, 699440), (140, 579536), (145, 559552), (160, 507094), (203, 399680), (224, 362210), (232, 349720), (280, 289768), (290, 279776), (320, 253547), (406, 199840), (448, 181105), (464, 174860), (560, 144884), (580, 139888), (812, 99920), (928, 87430), (1015, 79936), (1120, 72442), (1160, 69944), (1249, 64960), (1624, 49960), (1856, 43715), (2030, 39968), (2240, 36221), (2320, 34972), (2498, 32480), (3248, 24980), (4060, 19984), (4640, 17486), (4996, 16240), (6245, 12992), (6496, 12490), (8120, 9992), (8743, 9280)]