161820190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{37897}}^1$

素因数の和:37972

約数の個数: 32

約数和(自身を含む): 338353344

約数和(自身を除く): 176533154

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 37897, 75794, 189485, 265279, 378970, 530558, 1326395, 2311717, 2652790, 4623434, 11558585, 16182019, 23117170, 32364038, 80910095, 161820190]

約数ペア:

[(1, 161820190), (2, 80910095), (5, 32364038), (7, 23117170), (10, 16182019), (14, 11558585), (35, 4623434), (61, 2652790), (70, 2311717), (122, 1326395), (305, 530558), (427, 378970), (610, 265279), (854, 189485), (2135, 75794), (4270, 37897)]