491490385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 635310720

約数和(自身を除く): 143820335

約数列:

[1, 5, 19, 73, 95, 131, 365, 541, 655, 1387, 2489, 2705, 6935, 9563, 10279, 12445, 39493, 47815, 51395, 70871, 181697, 197465, 354355, 750367, 908485, 1346549, 3751835, 5173583, 6732745, 25867915, 98298077, 491490385]

約数ペア:

[(1, 491490385), (5, 98298077), (19, 25867915), (73, 6732745), (95, 5173583), (131, 3751835), (365, 1346549), (541, 908485), (655, 750367), (1387, 354355), (2489, 197465), (2705, 181697), (6935, 70871), (9563, 51395), (10279, 47815), (12445, 39493)]