28161020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{857}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 62270208

約数和(自身を除く): 34109188

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 857, 1060, 1643, 1714, 3286, 3428, 4285, 6572, 8215, 8570, 16430, 17140, 26567, 32860, 45421, 53134, 90842, 106268, 132835, 181684, 227105, 265670, 454210, 531340, 908420, 1408051, 2816102, 5632204, 7040255, 14080510, 28161020]

約数ペア:

[(1, 28161020), (2, 14080510), (4, 7040255), (5, 5632204), (10, 2816102), (20, 1408051), (31, 908420), (53, 531340), (62, 454210), (106, 265670), (124, 227105), (155, 181684), (212, 132835), (265, 106268), (310, 90842), (530, 53134), (620, 45421), (857, 32860), (1060, 26567), (1643, 17140), (1714, 16430), (3286, 8570), (3428, 8215), (4285, 6572)]