66542775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 119575680

約数和(自身を除く): 53032905

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 139, 195, 325, 417, 491, 695, 975, 1473, 1807, 2085, 2455, 3475, 5421, 6383, 7365, 9035, 10425, 12275, 19149, 27105, 31915, 36825, 45175, 68249, 95745, 135525, 159575, 204747, 341245, 478725, 887237, 1023735, 1706225, 2661711, 4436185, 5118675, 13308555, 22180925, 66542775]

約数ペア:

[(1, 66542775), (3, 22180925), (5, 13308555), (13, 5118675), (15, 4436185), (25, 2661711), (39, 1706225), (65, 1023735), (75, 887237), (139, 478725), (195, 341245), (325, 204747), (417, 159575), (491, 135525), (695, 95745), (975, 68249), (1473, 45175), (1807, 36825), (2085, 31915), (2455, 27105), (3475, 19149), (5421, 12275), (6383, 10425), (7365, 9035)]