991779590

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{18493}}^1$

素因数の和:18704

約数の個数: 32

約数和(自身を含む): 1853542656

約数和(自身を除く): 861763066

約数列:

[1, 2, 5, 10, 31, 62, 155, 173, 310, 346, 865, 1730, 5363, 10726, 18493, 26815, 36986, 53630, 92465, 184930, 573283, 1146566, 2866415, 3199289, 5732830, 6398578, 15996445, 31992890, 99177959, 198355918, 495889795, 991779590]

約数ペア:

[(1, 991779590), (2, 495889795), (5, 198355918), (10, 99177959), (31, 31992890), (62, 15996445), (155, 6398578), (173, 5732830), (310, 3199289), (346, 2866415), (865, 1146566), (1730, 573283), (5363, 184930), (10726, 92465), (18493, 53630), (26815, 36986)]