20145375

素因数分解:

$3^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 38338560

約数和(自身を除く): 18193185

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 125, 127, 135, 141, 225, 235, 375, 381, 423, 635, 675, 705, 1125, 1143, 1175, 1269, 1905, 2115, 3175, 3375, 3429, 3525, 5715, 5875, 5969, 6345, 9525, 10575, 15875, 17145, 17625, 17907, 28575, 29845, 31725, 47625, 52875, 53721, 85725, 89535, 142875, 149225, 158625, 161163, 268605, 428625, 447675, 746125, 805815, 1343025, 2238375, 4029075, 6715125, 20145375]

約数ペア:

[(1, 20145375), (3, 6715125), (5, 4029075), (9, 2238375), (15, 1343025), (25, 805815), (27, 746125), (45, 447675), (47, 428625), (75, 268605), (125, 161163), (127, 158625), (135, 149225), (141, 142875), (225, 89535), (235, 85725), (375, 53721), (381, 52875), (423, 47625), (635, 31725), (675, 29845), (705, 28575), (1125, 17907), (1143, 17625), (1175, 17145), (1269, 15875), (1905, 10575), (2115, 9525), (3175, 6345), (3375, 5969), (3429, 5875), (3525, 5715)]