81453872

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{617}}^1$

素因数の和:885

約数の個数: 40

約数和(自身を含む): 163072896

約数和(自身を除く): 81619024

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 223, 296, 446, 592, 617, 892, 1234, 1784, 2468, 3568, 4936, 8251, 9872, 16502, 22829, 33004, 45658, 66008, 91316, 132016, 137591, 182632, 275182, 365264, 550364, 1100728, 2201456, 5090867, 10181734, 20363468, 40726936, 81453872]

約数ペア:

[(1, 81453872), (2, 40726936), (4, 20363468), (8, 10181734), (16, 5090867), (37, 2201456), (74, 1100728), (148, 550364), (223, 365264), (296, 275182), (446, 182632), (592, 137591), (617, 132016), (892, 91316), (1234, 66008), (1784, 45658), (2468, 33004), (3568, 22829), (4936, 16502), (8251, 9872)]