28786185

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:184

約数の個数: 80

約数和(自身を含む): 56610576

約数和(自身を除く): 27824391

約数列:

[1, 3, 5, 9, 15, 17, 27, 37, 45, 51, 81, 85, 111, 113, 135, 153, 185, 255, 333, 339, 405, 459, 555, 565, 629, 765, 999, 1017, 1377, 1665, 1695, 1887, 1921, 2295, 2997, 3051, 3145, 4181, 4995, 5085, 5661, 5763, 6885, 9153, 9435, 9605, 12543, 14985, 15255, 16983, 17289, 20905, 28305, 28815, 37629, 45765, 50949, 51867, 62715, 71077, 84915, 86445, 112887, 155601, 188145, 213231, 254745, 259335, 338661, 355385, 564435, 639693, 778005, 1066155, 1693305, 1919079, 3198465, 5757237, 9595395, 28786185]

約数ペア:

[(1, 28786185), (3, 9595395), (5, 5757237), (9, 3198465), (15, 1919079), (17, 1693305), (27, 1066155), (37, 778005), (45, 639693), (51, 564435), (81, 355385), (85, 338661), (111, 259335), (113, 254745), (135, 213231), (153, 188145), (185, 155601), (255, 112887), (333, 86445), (339, 84915), (405, 71077), (459, 62715), (555, 51867), (565, 50949), (629, 45765), (765, 37629), (999, 28815), (1017, 28305), (1377, 20905), (1665, 17289), (1695, 16983), (1887, 15255), (1921, 14985), (2295, 12543), (2997, 9605), (3051, 9435), (3145, 9153), (4181, 6885), (4995, 5763), (5085, 5661)]