499651490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{123983}}^1$

素因数の和:124034

約数の個数: 32

約数和(自身を含む): 999806976

約数和(自身を除く): 500155486

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 123983, 247966, 619915, 1239830, 1611779, 3223558, 3843473, 7686946, 8058895, 16117790, 19217365, 38434730, 49965149, 99930298, 249825745, 499651490]

約数ペア:

[(1, 499651490), (2, 249825745), (5, 99930298), (10, 49965149), (13, 38434730), (26, 19217365), (31, 16117790), (62, 8058895), (65, 7686946), (130, 3843473), (155, 3223558), (310, 1611779), (403, 1239830), (806, 619915), (2015, 247966), (4030, 123983)]