391820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 973728

約数和(自身を除く): 581908

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 137, 143, 220, 260, 274, 286, 548, 572, 685, 715, 1370, 1430, 1507, 1781, 2740, 2860, 3014, 3562, 6028, 7124, 7535, 8905, 15070, 17810, 19591, 30140, 35620, 39182, 78364, 97955, 195910, 391820]

約数ペア:

[(1, 391820), (2, 195910), (4, 97955), (5, 78364), (10, 39182), (11, 35620), (13, 30140), (20, 19591), (22, 17810), (26, 15070), (44, 8905), (52, 7535), (55, 7124), (65, 6028), (110, 3562), (130, 3014), (137, 2860), (143, 2740), (220, 1781), (260, 1507), (274, 1430), (286, 1370), (548, 715), (572, 685)]