905066240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:642

約数の個数: 144

約数和(自身を含む): 2360820000

約数和(自身を除く): 1455753760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 109, 128, 130, 160, 208, 218, 256, 260, 320, 416, 436, 499, 520, 545, 640, 832, 872, 998, 1040, 1090, 1280, 1417, 1664, 1744, 1996, 2080, 2180, 2495, 2834, 3328, 3488, 3992, 4160, 4360, 4990, 5668, 6487, 6976, 7085, 7984, 8320, 8720, 9980, 11336, 12974, 13952, 14170, 15968, 16640, 17440, 19960, 22672, 25948, 27904, 28340, 31936, 32435, 34880, 39920, 45344, 51896, 54391, 56680, 63872, 64870, 69760, 79840, 90688, 103792, 108782, 113360, 127744, 129740, 139520, 159680, 181376, 207584, 217564, 226720, 259480, 271955, 319360, 362752, 415168, 435128, 453440, 518960, 543910, 638720, 707083, 830336, 870256, 906880, 1037920, 1087820, 1414166, 1660672, 1740512, 1813760, 2075840, 2175640, 2828332, 3481024, 3535415, 4151680, 4351280, 5656664, 6962048, 7070830, 8303360, 8702560, 11313328, 13924096, 14141660, 17405120, 22626656, 28283320, 34810240, 45253312, 56566640, 69620480, 90506624, 113133280, 181013248, 226266560, 452533120, 905066240]

約数ペア:

[(1, 905066240), (2, 452533120), (4, 226266560), (5, 181013248), (8, 113133280), (10, 90506624), (13, 69620480), (16, 56566640), (20, 45253312), (26, 34810240), (32, 28283320), (40, 22626656), (52, 17405120), (64, 14141660), (65, 13924096), (80, 11313328), (104, 8702560), (109, 8303360), (128, 7070830), (130, 6962048), (160, 5656664), (208, 4351280), (218, 4151680), (256, 3535415), (260, 3481024), (320, 2828332), (416, 2175640), (436, 2075840), (499, 1813760), (520, 1740512), (545, 1660672), (640, 1414166), (832, 1087820), (872, 1037920), (998, 906880), (1040, 870256), (1090, 830336), (1280, 707083), (1417, 638720), (1664, 543910), (1744, 518960), (1996, 453440), (2080, 435128), (2180, 415168), (2495, 362752), (2834, 319360), (3328, 271955), (3488, 259480), (3992, 226720), (4160, 217564), (4360, 207584), (4990, 181376), (5668, 159680), (6487, 139520), (6976, 129740), (7085, 127744), (7984, 113360), (8320, 108782), (8720, 103792), (9980, 90688), (11336, 79840), (12974, 69760), (13952, 64870), (14170, 63872), (15968, 56680), (16640, 54391), (17440, 51896), (19960, 45344), (22672, 39920), (25948, 34880), (27904, 32435), (28340, 31936)]