31538260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1201}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 72091152

約数和(自身を除く): 40552892

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1201, 1313, 2020, 2402, 2626, 4804, 5252, 6005, 6565, 12010, 13130, 15613, 24020, 26260, 31226, 62452, 78065, 121301, 156130, 242602, 312260, 485204, 606505, 1213010, 1576913, 2426020, 3153826, 6307652, 7884565, 15769130, 31538260]

約数ペア:

[(1, 31538260), (2, 15769130), (4, 7884565), (5, 6307652), (10, 3153826), (13, 2426020), (20, 1576913), (26, 1213010), (52, 606505), (65, 485204), (101, 312260), (130, 242602), (202, 156130), (260, 121301), (404, 78065), (505, 62452), (1010, 31226), (1201, 26260), (1313, 24020), (2020, 15613), (2402, 13130), (2626, 12010), (4804, 6565), (5252, 6005)]