8987825

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:87

約数の個数: 72

約数和(自身を含む): 15266880

約数和(自身を除く): 6279055

約数列:

[1, 5, 7, 11, 23, 25, 29, 35, 49, 55, 77, 115, 145, 161, 175, 203, 245, 253, 275, 319, 385, 539, 575, 667, 725, 805, 1015, 1127, 1225, 1265, 1421, 1595, 1771, 1925, 2233, 2695, 3335, 4025, 4669, 5075, 5635, 6325, 7105, 7337, 7975, 8855, 11165, 12397, 13475, 15631, 16675, 23345, 28175, 32683, 35525, 36685, 44275, 51359, 55825, 61985, 78155, 116725, 163415, 183425, 256795, 309925, 359513, 390775, 817075, 1283975, 1797565, 8987825]

約数ペア:

[(1, 8987825), (5, 1797565), (7, 1283975), (11, 817075), (23, 390775), (25, 359513), (29, 309925), (35, 256795), (49, 183425), (55, 163415), (77, 116725), (115, 78155), (145, 61985), (161, 55825), (175, 51359), (203, 44275), (245, 36685), (253, 35525), (275, 32683), (319, 28175), (385, 23345), (539, 16675), (575, 15631), (667, 13475), (725, 12397), (805, 11165), (1015, 8855), (1127, 7975), (1225, 7337), (1265, 7105), (1421, 6325), (1595, 5635), (1771, 5075), (1925, 4669), (2233, 4025), (2695, 3335)]