173604140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{1117}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 385039200

約数和(自身を除く): 211435060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 409, 818, 1117, 1636, 2045, 2234, 4090, 4468, 5585, 7771, 8180, 11170, 15542, 21223, 22340, 31084, 38855, 42446, 77710, 84892, 106115, 155420, 212230, 424460, 456853, 913706, 1827412, 2284265, 4568530, 8680207, 9137060, 17360414, 34720828, 43401035, 86802070, 173604140]

約数ペア:

[(1, 173604140), (2, 86802070), (4, 43401035), (5, 34720828), (10, 17360414), (19, 9137060), (20, 8680207), (38, 4568530), (76, 2284265), (95, 1827412), (190, 913706), (380, 456853), (409, 424460), (818, 212230), (1117, 155420), (1636, 106115), (2045, 84892), (2234, 77710), (4090, 42446), (4468, 38855), (5585, 31084), (7771, 22340), (8180, 21223), (11170, 15542)]