20100704

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:463

約数の個数: 48

約数和(自身を含む): 43006320

約数和(自身を除く): 22905616

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 211, 229, 416, 422, 458, 844, 916, 1688, 1832, 2743, 2977, 3376, 3664, 5486, 5954, 6752, 7328, 10972, 11908, 21944, 23816, 43888, 47632, 48319, 87776, 95264, 96638, 193276, 386552, 628147, 773104, 1256294, 1546208, 2512588, 5025176, 10050352, 20100704]

約数ペア:

[(1, 20100704), (2, 10050352), (4, 5025176), (8, 2512588), (13, 1546208), (16, 1256294), (26, 773104), (32, 628147), (52, 386552), (104, 193276), (208, 96638), (211, 95264), (229, 87776), (416, 48319), (422, 47632), (458, 43888), (844, 23816), (916, 21944), (1688, 11908), (1832, 10972), (2743, 7328), (2977, 6752), (3376, 5954), (3664, 5486)]