18901479935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{997}}^1\times {\mathrm{1109}}^1$

素因数の和:2387

約数の個数: 32

約数和(自身を含む): 24566129280

約数和(自身を除く): 5664649345

約数列:

[1, 5, 13, 65, 263, 997, 1109, 1315, 3419, 4985, 5545, 12961, 14417, 17095, 64805, 72085, 262211, 291667, 1105673, 1311055, 1458335, 3408743, 3791671, 5528365, 14373749, 17043715, 18958355, 71868745, 290791999, 1453959995, 3780295987, 18901479935]

約数ペア:

[(1, 18901479935), (5, 3780295987), (13, 1453959995), (65, 290791999), (263, 71868745), (997, 18958355), (1109, 17043715), (1315, 14373749), (3419, 5528365), (4985, 3791671), (5545, 3408743), (12961, 1458335), (14417, 1311055), (17095, 1105673), (64805, 291667), (72085, 262211)]