265525975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 412504848

約数和(自身を除く): 146978873

約数列:

[1, 5, 11, 13, 17, 25, 55, 65, 85, 143, 187, 221, 257, 275, 289, 325, 425, 715, 935, 1105, 1285, 1445, 2431, 2827, 3179, 3341, 3575, 3757, 4369, 4675, 5525, 6425, 7225, 12155, 14135, 15895, 16705, 18785, 21845, 36751, 41327, 48059, 56797, 60775, 70675, 74273, 79475, 83525, 93925, 109225, 183755, 206635, 240295, 283985, 371365, 624767, 817003, 918775, 965549, 1033175, 1201475, 1419925, 1856825, 3123835, 4085015, 4827745, 10621039, 15619175, 20425075, 24138725, 53105195, 265525975]

約数ペア:

[(1, 265525975), (5, 53105195), (11, 24138725), (13, 20425075), (17, 15619175), (25, 10621039), (55, 4827745), (65, 4085015), (85, 3123835), (143, 1856825), (187, 1419925), (221, 1201475), (257, 1033175), (275, 965549), (289, 918775), (325, 817003), (425, 624767), (715, 371365), (935, 283985), (1105, 240295), (1285, 206635), (1445, 183755), (2431, 109225), (2827, 93925), (3179, 83525), (3341, 79475), (3575, 74273), (3757, 70675), (4369, 60775), (4675, 56797), (5525, 48059), (6425, 41327), (7225, 36751), (12155, 21845), (14135, 18785), (15895, 16705)]