1816990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 3789504

約数和(自身を除く): 1972514

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 202, 257, 505, 514, 707, 1010, 1285, 1414, 1799, 2570, 3535, 3598, 7070, 8995, 17990, 25957, 51914, 129785, 181699, 259570, 363398, 908495, 1816990]

約数ペア:

[(1, 1816990), (2, 908495), (5, 363398), (7, 259570), (10, 181699), (14, 129785), (35, 51914), (70, 25957), (101, 17990), (202, 8995), (257, 7070), (505, 3598), (514, 3535), (707, 2570), (1010, 1799), (1285, 1414)]