8435440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8111}}^1$

素因数の和:8137

約数の個数: 40

約数和(自身を含む): 21123648

約数和(自身を除く): 12688208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 8111, 16222, 32444, 40555, 64888, 81110, 105443, 129776, 162220, 210886, 324440, 421772, 527215, 648880, 843544, 1054430, 1687088, 2108860, 4217720, 8435440]

約数ペア:

[(1, 8435440), (2, 4217720), (4, 2108860), (5, 1687088), (8, 1054430), (10, 843544), (13, 648880), (16, 527215), (20, 421772), (26, 324440), (40, 210886), (52, 162220), (65, 129776), (80, 105443), (104, 81110), (130, 64888), (208, 40555), (260, 32444), (520, 16222), (1040, 8111)]