20176988280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{20947}}^1$

素因数の和:21333

約数の個数: 128

約数和(自身を含む): 63346752000

約数和(自身を除く): 43169763720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 349, 460, 552, 690, 698, 920, 1047, 1380, 1396, 1745, 2094, 2760, 2792, 3490, 4188, 5235, 6980, 8027, 8376, 10470, 13960, 16054, 20940, 20947, 24081, 32108, 40135, 41880, 41894, 48162, 62841, 64216, 80270, 83788, 96324, 104735, 120405, 125682, 160540, 167576, 192648, 209470, 240810, 251364, 314205, 321080, 418940, 481620, 481781, 502728, 628410, 837880, 963240, 963562, 1256820, 1445343, 1927124, 2408905, 2513640, 2890686, 3854248, 4817810, 5781372, 7226715, 7310503, 9635620, 11562744, 14453430, 14621006, 19271240, 21931509, 28906860, 29242012, 36552515, 43863018, 57813720, 58484024, 73105030, 87726036, 109657545, 146210060, 168141569, 175452072, 219315090, 292420120, 336283138, 438630180, 504424707, 672566276, 840707845, 877260360, 1008849414, 1345132552, 1681415690, 2017698828, 2522123535, 3362831380, 4035397656, 5044247070, 6725662760, 10088494140, 20176988280]

約数ペア:

[(1, 20176988280), (2, 10088494140), (3, 6725662760), (4, 5044247070), (5, 4035397656), (6, 3362831380), (8, 2522123535), (10, 2017698828), (12, 1681415690), (15, 1345132552), (20, 1008849414), (23, 877260360), (24, 840707845), (30, 672566276), (40, 504424707), (46, 438630180), (60, 336283138), (69, 292420120), (92, 219315090), (115, 175452072), (120, 168141569), (138, 146210060), (184, 109657545), (230, 87726036), (276, 73105030), (345, 58484024), (349, 57813720), (460, 43863018), (552, 36552515), (690, 29242012), (698, 28906860), (920, 21931509), (1047, 19271240), (1380, 14621006), (1396, 14453430), (1745, 11562744), (2094, 9635620), (2760, 7310503), (2792, 7226715), (3490, 5781372), (4188, 4817810), (5235, 3854248), (6980, 2890686), (8027, 2513640), (8376, 2408905), (10470, 1927124), (13960, 1445343), (16054, 1256820), (20940, 963562), (20947, 963240), (24081, 837880), (32108, 628410), (40135, 502728), (41880, 481781), (41894, 481620), (48162, 418940), (62841, 321080), (64216, 314205), (80270, 251364), (83788, 240810), (96324, 209470), (104735, 192648), (120405, 167576), (125682, 160540)]