18430875

素因数分解:

$3^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 35143680

約数和(自身を除く): 16712805

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 125, 127, 129, 135, 215, 225, 375, 381, 387, 635, 645, 675, 1075, 1125, 1143, 1161, 1905, 1935, 3175, 3225, 3375, 3429, 5375, 5461, 5715, 5805, 9525, 9675, 15875, 16125, 16383, 17145, 27305, 28575, 29025, 47625, 48375, 49149, 81915, 85725, 136525, 142875, 145125, 147447, 245745, 409575, 428625, 682625, 737235, 1228725, 2047875, 3686175, 6143625, 18430875]

約数ペア:

[(1, 18430875), (3, 6143625), (5, 3686175), (9, 2047875), (15, 1228725), (25, 737235), (27, 682625), (43, 428625), (45, 409575), (75, 245745), (125, 147447), (127, 145125), (129, 142875), (135, 136525), (215, 85725), (225, 81915), (375, 49149), (381, 48375), (387, 47625), (635, 29025), (645, 28575), (675, 27305), (1075, 17145), (1125, 16383), (1143, 16125), (1161, 15875), (1905, 9675), (1935, 9525), (3175, 5805), (3225, 5715), (3375, 5461), (3429, 5375)]