17954480

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 44193600

約数和(自身を除く): 26239120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 71, 80, 109, 116, 142, 145, 218, 232, 284, 290, 355, 436, 464, 545, 568, 580, 710, 872, 1090, 1136, 1160, 1420, 1744, 2059, 2180, 2320, 2840, 3161, 4118, 4360, 5680, 6322, 7739, 8236, 8720, 10295, 12644, 15478, 15805, 16472, 20590, 25288, 30956, 31610, 32944, 38695, 41180, 50576, 61912, 63220, 77390, 82360, 123824, 126440, 154780, 164720, 224431, 252880, 309560, 448862, 619120, 897724, 1122155, 1795448, 2244310, 3590896, 4488620, 8977240, 17954480]

約数ペア:

[(1, 17954480), (2, 8977240), (4, 4488620), (5, 3590896), (8, 2244310), (10, 1795448), (16, 1122155), (20, 897724), (29, 619120), (40, 448862), (58, 309560), (71, 252880), (80, 224431), (109, 164720), (116, 154780), (142, 126440), (145, 123824), (218, 82360), (232, 77390), (284, 63220), (290, 61912), (355, 50576), (436, 41180), (464, 38695), (545, 32944), (568, 31610), (580, 30956), (710, 25288), (872, 20590), (1090, 16472), (1136, 15805), (1160, 15478), (1420, 12644), (1744, 10295), (2059, 8720), (2180, 8236), (2320, 7739), (2840, 6322), (3161, 5680), (4118, 4360)]