128845840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 339264000

約数和(自身を除く): 210418160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 37, 38, 40, 58, 74, 76, 79, 80, 95, 116, 145, 148, 152, 158, 185, 190, 232, 290, 296, 304, 316, 370, 380, 395, 464, 551, 580, 592, 632, 703, 740, 760, 790, 1073, 1102, 1160, 1264, 1406, 1480, 1501, 1520, 1580, 2146, 2204, 2291, 2320, 2755, 2812, 2923, 2960, 3002, 3160, 3515, 4292, 4408, 4582, 5365, 5510, 5624, 5846, 6004, 6320, 7030, 7505, 8584, 8816, 9164, 10730, 11020, 11248, 11455, 11692, 12008, 14060, 14615, 15010, 17168, 18328, 20387, 21460, 22040, 22910, 23384, 24016, 28120, 29230, 30020, 36656, 40774, 42920, 43529, 44080, 45820, 46768, 55537, 56240, 58460, 60040, 81548, 84767, 85840, 87058, 91640, 101935, 111074, 116920, 120080, 163096, 169534, 174116, 183280, 203870, 217645, 222148, 233840, 277685, 326192, 339068, 348232, 407740, 423835, 435290, 444296, 555370, 678136, 696464, 815480, 847670, 870580, 888592, 1110740, 1356272, 1610573, 1630960, 1695340, 1741160, 2221480, 3221146, 3390680, 3482320, 4442960, 6442292, 6781360, 8052865, 12884584, 16105730, 25769168, 32211460, 64422920, 128845840]

約数ペア:

[(1, 128845840), (2, 64422920), (4, 32211460), (5, 25769168), (8, 16105730), (10, 12884584), (16, 8052865), (19, 6781360), (20, 6442292), (29, 4442960), (37, 3482320), (38, 3390680), (40, 3221146), (58, 2221480), (74, 1741160), (76, 1695340), (79, 1630960), (80, 1610573), (95, 1356272), (116, 1110740), (145, 888592), (148, 870580), (152, 847670), (158, 815480), (185, 696464), (190, 678136), (232, 555370), (290, 444296), (296, 435290), (304, 423835), (316, 407740), (370, 348232), (380, 339068), (395, 326192), (464, 277685), (551, 233840), (580, 222148), (592, 217645), (632, 203870), (703, 183280), (740, 174116), (760, 169534), (790, 163096), (1073, 120080), (1102, 116920), (1160, 111074), (1264, 101935), (1406, 91640), (1480, 87058), (1501, 85840), (1520, 84767), (1580, 81548), (2146, 60040), (2204, 58460), (2291, 56240), (2320, 55537), (2755, 46768), (2812, 45820), (2923, 44080), (2960, 43529), (3002, 42920), (3160, 40774), (3515, 36656), (4292, 30020), (4408, 29230), (4582, 28120), (5365, 24016), (5510, 23384), (5624, 22910), (5846, 22040), (6004, 21460), (6320, 20387), (7030, 18328), (7505, 17168), (8584, 15010), (8816, 14615), (9164, 14060), (10730, 12008), (11020, 11692), (11248, 11455)]