1217115

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 2347488

約数和(自身を除く): 1130373

約数列:

[1, 3, 5, 9, 15, 17, 37, 43, 45, 51, 85, 111, 129, 153, 185, 215, 255, 333, 387, 555, 629, 645, 731, 765, 1591, 1665, 1887, 1935, 2193, 3145, 3655, 4773, 5661, 6579, 7955, 9435, 10965, 14319, 23865, 27047, 28305, 32895, 71595, 81141, 135235, 243423, 405705, 1217115]

約数ペア:

[(1, 1217115), (3, 405705), (5, 243423), (9, 135235), (15, 81141), (17, 71595), (37, 32895), (43, 28305), (45, 27047), (51, 23865), (85, 14319), (111, 10965), (129, 9435), (153, 7955), (185, 6579), (215, 5661), (255, 4773), (333, 3655), (387, 3145), (555, 2193), (629, 1935), (645, 1887), (731, 1665), (765, 1591)]