81859984

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{2609}}^1$

素因数の和:2707

約数の個数: 40

約数和(自身を含む): 166027320

約数和(自身を除く): 84167336

約数列:

[1, 2, 4, 8, 16, 37, 53, 74, 106, 148, 212, 296, 424, 592, 848, 1961, 2609, 3922, 5218, 7844, 10436, 15688, 20872, 31376, 41744, 96533, 138277, 193066, 276554, 386132, 553108, 772264, 1106216, 1544528, 2212432, 5116249, 10232498, 20464996, 40929992, 81859984]

約数ペア:

[(1, 81859984), (2, 40929992), (4, 20464996), (8, 10232498), (16, 5116249), (37, 2212432), (53, 1544528), (74, 1106216), (106, 772264), (148, 553108), (212, 386132), (296, 276554), (424, 193066), (592, 138277), (848, 96533), (1961, 41744), (2609, 31376), (3922, 20872), (5218, 15688), (7844, 10436)]