28704130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31543}}^1$

素因数の和:31570

約数の個数: 32

約数和(自身を含む): 63592704

約数和(自身を除く): 34888574

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 31543, 63086, 157715, 220801, 315430, 410059, 441602, 820118, 1104005, 2050295, 2208010, 2870413, 4100590, 5740826, 14352065, 28704130]

約数ペア:

[(1, 28704130), (2, 14352065), (5, 5740826), (7, 4100590), (10, 2870413), (13, 2208010), (14, 2050295), (26, 1104005), (35, 820118), (65, 441602), (70, 410059), (91, 315430), (130, 220801), (182, 157715), (455, 63086), (910, 31543)]