8977240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 21384000

約数和(自身を除く): 12406760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 109, 116, 142, 145, 218, 232, 284, 290, 355, 436, 545, 568, 580, 710, 872, 1090, 1160, 1420, 2059, 2180, 2840, 3161, 4118, 4360, 6322, 7739, 8236, 10295, 12644, 15478, 15805, 16472, 20590, 25288, 30956, 31610, 38695, 41180, 61912, 63220, 77390, 82360, 126440, 154780, 224431, 309560, 448862, 897724, 1122155, 1795448, 2244310, 4488620, 8977240]

約数ペア:

[(1, 8977240), (2, 4488620), (4, 2244310), (5, 1795448), (8, 1122155), (10, 897724), (20, 448862), (29, 309560), (40, 224431), (58, 154780), (71, 126440), (109, 82360), (116, 77390), (142, 63220), (145, 61912), (218, 41180), (232, 38695), (284, 31610), (290, 30956), (355, 25288), (436, 20590), (545, 16472), (568, 15805), (580, 15478), (710, 12644), (872, 10295), (1090, 8236), (1160, 7739), (1420, 6322), (2059, 4360), (2180, 4118), (2840, 3161)]