28188080

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 68700960

約数和(自身を除く): 40512880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 89, 107, 148, 178, 185, 214, 296, 356, 370, 428, 445, 535, 592, 712, 740, 856, 890, 1070, 1424, 1480, 1712, 1780, 2140, 2960, 3293, 3560, 3959, 4280, 6586, 7120, 7918, 8560, 9523, 13172, 15836, 16465, 19046, 19795, 26344, 31672, 32930, 38092, 39590, 47615, 52688, 63344, 65860, 76184, 79180, 95230, 131720, 152368, 158360, 190460, 263440, 316720, 352351, 380920, 704702, 761840, 1409404, 1761755, 2818808, 3523510, 5637616, 7047020, 14094040, 28188080]

約数ペア:

[(1, 28188080), (2, 14094040), (4, 7047020), (5, 5637616), (8, 3523510), (10, 2818808), (16, 1761755), (20, 1409404), (37, 761840), (40, 704702), (74, 380920), (80, 352351), (89, 316720), (107, 263440), (148, 190460), (178, 158360), (185, 152368), (214, 131720), (296, 95230), (356, 79180), (370, 76184), (428, 65860), (445, 63344), (535, 52688), (592, 47615), (712, 39590), (740, 38092), (856, 32930), (890, 31672), (1070, 26344), (1424, 19795), (1480, 19046), (1712, 16465), (1780, 15836), (2140, 13172), (2960, 9523), (3293, 8560), (3560, 7918), (3959, 7120), (4280, 6586)]