31449880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10211}}^1$

素因数の和:10240

約数の個数: 64

約数和(自身を含む): 88231680

約数和(自身を除く): 56781800

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 10211, 20422, 40844, 51055, 71477, 81688, 102110, 112321, 142954, 204220, 224642, 285908, 357385, 408440, 449284, 561605, 571816, 714770, 786247, 898568, 1123210, 1429540, 1572494, 2246420, 2859080, 3144988, 3931235, 4492840, 6289976, 7862470, 15724940, 31449880]

約数ペア:

[(1, 31449880), (2, 15724940), (4, 7862470), (5, 6289976), (7, 4492840), (8, 3931235), (10, 3144988), (11, 2859080), (14, 2246420), (20, 1572494), (22, 1429540), (28, 1123210), (35, 898568), (40, 786247), (44, 714770), (55, 571816), (56, 561605), (70, 449284), (77, 408440), (88, 357385), (110, 285908), (140, 224642), (154, 204220), (220, 142954), (280, 112321), (308, 102110), (385, 81688), (440, 71477), (616, 51055), (770, 40844), (1540, 20422), (3080, 10211)]