628521782

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{20123}}^1$

素因数の和:20252

約数の個数: 32

約数和(自身を含む): 1135959552

約数和(自身を除く): 507437770

約数列:

[1, 2, 7, 14, 23, 46, 97, 161, 194, 322, 679, 1358, 2231, 4462, 15617, 20123, 31234, 40246, 140861, 281722, 462829, 925658, 1951931, 3239803, 3903862, 6479606, 13663517, 27327034, 44894413, 89788826, 314260891, 628521782]

約数ペア:

[(1, 628521782), (2, 314260891), (7, 89788826), (14, 44894413), (23, 27327034), (46, 13663517), (97, 6479606), (161, 3903862), (194, 3239803), (322, 1951931), (679, 925658), (1358, 462829), (2231, 281722), (4462, 140861), (15617, 40246), (20123, 31234)]