256220175

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{11821}}^1$

素因数の和:11868

約数の個数: 36

約数和(自身を含む): 450039896

約数和(自身を除く): 193819721

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 289, 425, 867, 1275, 1445, 4335, 7225, 11821, 21675, 35463, 59105, 177315, 200957, 295525, 602871, 886575, 1004785, 3014355, 3416269, 5023925, 10248807, 15071775, 17081345, 51244035, 85406725, 256220175]

約数ペア:

[(1, 256220175), (3, 85406725), (5, 51244035), (15, 17081345), (17, 15071775), (25, 10248807), (51, 5023925), (75, 3416269), (85, 3014355), (255, 1004785), (289, 886575), (425, 602871), (867, 295525), (1275, 200957), (1445, 177315), (4335, 59105), (7225, 35463), (11821, 21675)]