87651440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26723}}^1$

素因数の和:26777

約数の個数: 40

約数和(自身を含む): 208767888

約数和(自身を除く): 121116448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 26723, 53446, 106892, 133615, 213784, 267230, 427568, 534460, 1068920, 1095643, 2137840, 2191286, 4382572, 5478215, 8765144, 10956430, 17530288, 21912860, 43825720, 87651440]

約数ペア:

[(1, 87651440), (2, 43825720), (4, 21912860), (5, 17530288), (8, 10956430), (10, 8765144), (16, 5478215), (20, 4382572), (40, 2191286), (41, 2137840), (80, 1095643), (82, 1068920), (164, 534460), (205, 427568), (328, 267230), (410, 213784), (656, 133615), (820, 106892), (1640, 53446), (3280, 26723)]