20392690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{863}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18798350

約数列:

[1, 2, 5, 10, 17, 34, 85, 139, 170, 278, 695, 863, 1390, 1726, 2363, 4315, 4726, 8630, 11815, 14671, 23630, 29342, 73355, 119957, 146710, 239914, 599785, 1199570, 2039269, 4078538, 10196345, 20392690]

約数ペア:

[(1, 20392690), (2, 10196345), (5, 4078538), (10, 2039269), (17, 1199570), (34, 599785), (85, 239914), (139, 146710), (170, 119957), (278, 73355), (695, 29342), (863, 23630), (1390, 14671), (1726, 11815), (2363, 8630), (4315, 4726)]