81391568

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{937}}^1$

素因数の和:1095

約数の個数: 40

約数和(自身を含む): 162255240

約数和(自身を除く): 80863672

約数列:

[1, 2, 4, 8, 16, 61, 89, 122, 178, 244, 356, 488, 712, 937, 976, 1424, 1874, 3748, 5429, 7496, 10858, 14992, 21716, 43432, 57157, 83393, 86864, 114314, 166786, 228628, 333572, 457256, 667144, 914512, 1334288, 5086973, 10173946, 20347892, 40695784, 81391568]

約数ペア:

[(1, 81391568), (2, 40695784), (4, 20347892), (8, 10173946), (16, 5086973), (61, 1334288), (89, 914512), (122, 667144), (178, 457256), (244, 333572), (356, 228628), (488, 166786), (712, 114314), (937, 86864), (976, 83393), (1424, 57157), (1874, 43432), (3748, 21716), (5429, 14992), (7496, 10858)]