491855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:95

約数の個数: 32

約数和(自身を含む): 774144

約数和(自身を除く): 282289

約数列:

[1, 5, 7, 13, 23, 35, 47, 65, 91, 115, 161, 235, 299, 329, 455, 611, 805, 1081, 1495, 1645, 2093, 3055, 4277, 5405, 7567, 10465, 14053, 21385, 37835, 70265, 98371, 491855]

約数ペア:

[(1, 491855), (5, 98371), (7, 70265), (13, 37835), (23, 21385), (35, 14053), (47, 10465), (65, 7567), (91, 5405), (115, 4277), (161, 3055), (235, 2093), (299, 1645), (329, 1495), (455, 1081), (611, 805)]