87241220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1543}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 200769408

約数和(自身を除く): 113528188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 1028, 1285, 1543, 2570, 2827, 3086, 5140, 5654, 6172, 7715, 11308, 14135, 15430, 16973, 28270, 30860, 33946, 56540, 67892, 84865, 169730, 339460, 396551, 793102, 1586204, 1982755, 3965510, 4362061, 7931020, 8724122, 17448244, 21810305, 43620610, 87241220]

約数ペア:

[(1, 87241220), (2, 43620610), (4, 21810305), (5, 17448244), (10, 8724122), (11, 7931020), (20, 4362061), (22, 3965510), (44, 1982755), (55, 1586204), (110, 793102), (220, 396551), (257, 339460), (514, 169730), (1028, 84865), (1285, 67892), (1543, 56540), (2570, 33946), (2827, 30860), (3086, 28270), (5140, 16973), (5654, 15430), (6172, 14135), (7715, 11308)]