215996935

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:376

約数の個数: 64

約数和(自身を含む): 338826240

約数和(自身を除く): 122829305

約数列:

[1, 5, 7, 11, 35, 37, 55, 59, 77, 185, 257, 259, 295, 385, 407, 413, 649, 1285, 1295, 1799, 2035, 2065, 2183, 2827, 2849, 3245, 4543, 8995, 9509, 10915, 14135, 14245, 15163, 15281, 19789, 22715, 24013, 47545, 66563, 75815, 76405, 98945, 104599, 106141, 120065, 166793, 168091, 332815, 522995, 530705, 561031, 732193, 833965, 840455, 1167551, 2805155, 3660965, 3927217, 5837755, 6171341, 19636085, 30856705, 43199387, 215996935]

約数ペア:

[(1, 215996935), (5, 43199387), (7, 30856705), (11, 19636085), (35, 6171341), (37, 5837755), (55, 3927217), (59, 3660965), (77, 2805155), (185, 1167551), (257, 840455), (259, 833965), (295, 732193), (385, 561031), (407, 530705), (413, 522995), (649, 332815), (1285, 168091), (1295, 166793), (1799, 120065), (2035, 106141), (2065, 104599), (2183, 98945), (2827, 76405), (2849, 75815), (3245, 66563), (4543, 47545), (8995, 24013), (9509, 22715), (10915, 19789), (14135, 15281), (14245, 15163)]