72165915

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{229}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 129168000

約数和(自身を除く): 57002085

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 149, 229, 235, 423, 447, 687, 705, 745, 1145, 1341, 2061, 2115, 2235, 3435, 6705, 7003, 10305, 10763, 21009, 32289, 34121, 35015, 53815, 63027, 96867, 102363, 105045, 161445, 170605, 307089, 315135, 484335, 511815, 1535445, 1603687, 4811061, 8018435, 14433183, 24055305, 72165915]

約数ペア:

[(1, 72165915), (3, 24055305), (5, 14433183), (9, 8018435), (15, 4811061), (45, 1603687), (47, 1535445), (141, 511815), (149, 484335), (229, 315135), (235, 307089), (423, 170605), (447, 161445), (687, 105045), (705, 102363), (745, 96867), (1145, 63027), (1341, 53815), (2061, 35015), (2115, 34121), (2235, 32289), (3435, 21009), (6705, 10763), (7003, 10305)]