28914705

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 26968815

約数列:

[1, 3, 5, 9, 15, 17, 27, 43, 45, 51, 85, 129, 135, 153, 215, 255, 293, 387, 459, 645, 731, 765, 879, 1161, 1465, 1935, 2193, 2295, 2637, 3655, 4395, 4981, 5805, 6579, 7911, 10965, 12599, 13185, 14943, 19737, 24905, 32895, 37797, 39555, 44829, 62995, 74715, 98685, 113391, 134487, 188985, 214183, 224145, 340173, 566955, 642549, 672435, 1070915, 1700865, 1927647, 3212745, 5782941, 9638235, 28914705]

約数ペア:

[(1, 28914705), (3, 9638235), (5, 5782941), (9, 3212745), (15, 1927647), (17, 1700865), (27, 1070915), (43, 672435), (45, 642549), (51, 566955), (85, 340173), (129, 224145), (135, 214183), (153, 188985), (215, 134487), (255, 113391), (293, 98685), (387, 74715), (459, 62995), (645, 44829), (731, 39555), (765, 37797), (879, 32895), (1161, 24905), (1465, 19737), (1935, 14943), (2193, 13185), (2295, 12599), (2637, 10965), (3655, 7911), (4395, 6579), (4981, 5805)]