20112148

素因数分解:

$2^2\times 7^3\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 41731200

約数和(自身を除く): 21619052

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 107, 137, 196, 214, 274, 343, 428, 548, 686, 749, 959, 1372, 1498, 1918, 2996, 3836, 5243, 6713, 10486, 13426, 14659, 20972, 26852, 29318, 36701, 46991, 58636, 73402, 93982, 102613, 146804, 187964, 205226, 410452, 718291, 1436582, 2873164, 5028037, 10056074, 20112148]

約数ペア:

[(1, 20112148), (2, 10056074), (4, 5028037), (7, 2873164), (14, 1436582), (28, 718291), (49, 410452), (98, 205226), (107, 187964), (137, 146804), (196, 102613), (214, 93982), (274, 73402), (343, 58636), (428, 46991), (548, 36701), (686, 29318), (749, 26852), (959, 20972), (1372, 14659), (1498, 13426), (1918, 10486), (2996, 6713), (3836, 5243)]