215960878

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 405504000

約数和(自身を除く): 189543122

約数列:

[1, 2, 7, 14, 19, 38, 43, 79, 86, 133, 158, 239, 266, 301, 478, 553, 602, 817, 1106, 1501, 1634, 1673, 3002, 3346, 3397, 4541, 5719, 6794, 9082, 10277, 10507, 11438, 18881, 20554, 21014, 23779, 31787, 37762, 47558, 63574, 64543, 71939, 129086, 132167, 143878, 195263, 264334, 358739, 390526, 451801, 717478, 811883, 903602, 1366841, 1623766, 2511173, 2733682, 5022346, 5683181, 11366362, 15425777, 30851554, 107980439, 215960878]

約数ペア:

[(1, 215960878), (2, 107980439), (7, 30851554), (14, 15425777), (19, 11366362), (38, 5683181), (43, 5022346), (79, 2733682), (86, 2511173), (133, 1623766), (158, 1366841), (239, 903602), (266, 811883), (301, 717478), (478, 451801), (553, 390526), (602, 358739), (817, 264334), (1106, 195263), (1501, 143878), (1634, 132167), (1673, 129086), (3002, 71939), (3346, 64543), (3397, 63574), (4541, 47558), (5719, 37762), (6794, 31787), (9082, 23779), (10277, 21014), (10507, 20554), (11438, 18881)]