81813004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5227}}^1$

素因数の和:5294

約数の個数: 48

約数和(自身を含む): 180345088

約数和(自身を除く): 98532084

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 2236, 3913, 5227, 7826, 10454, 15652, 20908, 36589, 67951, 73178, 135902, 146356, 224761, 271804, 449522, 475657, 899044, 951314, 1573327, 1902628, 2921893, 3146654, 5843786, 6293308, 11687572, 20453251, 40906502, 81813004]

約数ペア:

[(1, 81813004), (2, 40906502), (4, 20453251), (7, 11687572), (13, 6293308), (14, 5843786), (26, 3146654), (28, 2921893), (43, 1902628), (52, 1573327), (86, 951314), (91, 899044), (172, 475657), (182, 449522), (301, 271804), (364, 224761), (559, 146356), (602, 135902), (1118, 73178), (1204, 67951), (2236, 36589), (3913, 20908), (5227, 15652), (7826, 10454)]