87819975

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 167035440

約数和(自身を除く): 79215465

約数列:

[1, 3, 5, 9, 15, 25, 29, 43, 45, 75, 87, 129, 145, 215, 225, 261, 313, 387, 435, 645, 725, 939, 1075, 1247, 1305, 1565, 1935, 2175, 2817, 3225, 3741, 4695, 6235, 6525, 7825, 9077, 9675, 11223, 13459, 14085, 18705, 23475, 27231, 31175, 40377, 45385, 56115, 67295, 70425, 81693, 93525, 121131, 136155, 201885, 226925, 280575, 336475, 390311, 408465, 605655, 680775, 1009425, 1170933, 1951555, 2042325, 3028275, 3512799, 5854665, 9757775, 17563995, 29273325, 87819975]

約数ペア:

[(1, 87819975), (3, 29273325), (5, 17563995), (9, 9757775), (15, 5854665), (25, 3512799), (29, 3028275), (43, 2042325), (45, 1951555), (75, 1170933), (87, 1009425), (129, 680775), (145, 605655), (215, 408465), (225, 390311), (261, 336475), (313, 280575), (387, 226925), (435, 201885), (645, 136155), (725, 121131), (939, 93525), (1075, 81693), (1247, 70425), (1305, 67295), (1565, 56115), (1935, 45385), (2175, 40377), (2817, 31175), (3225, 27231), (3741, 23475), (4695, 18705), (6235, 14085), (6525, 13459), (7825, 11223), (9077, 9675)]