31287225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 55924992

約数和(自身を除く): 24637767

約数列:

[1, 3, 5, 15, 17, 25, 51, 53, 75, 85, 159, 255, 265, 425, 463, 795, 901, 1275, 1325, 1389, 2315, 2703, 3975, 4505, 6945, 7871, 11575, 13515, 22525, 23613, 24539, 34725, 39355, 67575, 73617, 118065, 122695, 196775, 368085, 417163, 590325, 613475, 1251489, 1840425, 2085815, 6257445, 10429075, 31287225]

約数ペア:

[(1, 31287225), (3, 10429075), (5, 6257445), (15, 2085815), (17, 1840425), (25, 1251489), (51, 613475), (53, 590325), (75, 417163), (85, 368085), (159, 196775), (255, 122695), (265, 118065), (425, 73617), (463, 67575), (795, 39355), (901, 34725), (1275, 24539), (1325, 23613), (1389, 22525), (2315, 13515), (2703, 11575), (3975, 7871), (4505, 6945)]