21157887120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1\times {\mathrm{5003}}^1$

素因数の和:5349

約数の個数: 160

約数和(自身を含む): 66834865152

約数和(自身を除く): 45676978032

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 263, 268, 335, 402, 526, 536, 670, 789, 804, 1005, 1052, 1072, 1315, 1340, 1578, 1608, 2010, 2104, 2630, 2680, 3156, 3216, 3945, 4020, 4208, 5003, 5260, 5360, 6312, 7890, 8040, 10006, 10520, 12624, 15009, 15780, 16080, 17621, 20012, 21040, 25015, 30018, 31560, 35242, 40024, 50030, 52863, 60036, 63120, 70484, 75045, 80048, 88105, 100060, 105726, 120072, 140968, 150090, 176210, 200120, 211452, 240144, 264315, 281936, 300180, 335201, 352420, 400240, 422904, 528630, 600360, 670402, 704840, 845808, 1005603, 1057260, 1200720, 1315789, 1340804, 1409680, 1676005, 2011206, 2114520, 2631578, 2681608, 3352010, 3947367, 4022412, 4229040, 5028015, 5263156, 5363216, 6578945, 6704020, 7894734, 8044824, 10056030, 10526312, 13157890, 13408040, 15789468, 16089648, 19736835, 20112060, 21052624, 26315780, 26816080, 31578936, 39473670, 40224120, 52631560, 63157872, 78947340, 80448240, 88157863, 105263120, 157894680, 176315726, 264473589, 315789360, 352631452, 440789315, 528947178, 705262904, 881578630, 1057894356, 1322367945, 1410525808, 1763157260, 2115788712, 2644735890, 3526314520, 4231577424, 5289471780, 7052629040, 10578943560, 21157887120]

約数ペア:

[(1, 21157887120), (2, 10578943560), (3, 7052629040), (4, 5289471780), (5, 4231577424), (6, 3526314520), (8, 2644735890), (10, 2115788712), (12, 1763157260), (15, 1410525808), (16, 1322367945), (20, 1057894356), (24, 881578630), (30, 705262904), (40, 528947178), (48, 440789315), (60, 352631452), (67, 315789360), (80, 264473589), (120, 176315726), (134, 157894680), (201, 105263120), (240, 88157863), (263, 80448240), (268, 78947340), (335, 63157872), (402, 52631560), (526, 40224120), (536, 39473670), (670, 31578936), (789, 26816080), (804, 26315780), (1005, 21052624), (1052, 20112060), (1072, 19736835), (1315, 16089648), (1340, 15789468), (1578, 13408040), (1608, 13157890), (2010, 10526312), (2104, 10056030), (2630, 8044824), (2680, 7894734), (3156, 6704020), (3216, 6578945), (3945, 5363216), (4020, 5263156), (4208, 5028015), (5003, 4229040), (5260, 4022412), (5360, 3947367), (6312, 3352010), (7890, 2681608), (8040, 2631578), (10006, 2114520), (10520, 2011206), (12624, 1676005), (15009, 1409680), (15780, 1340804), (16080, 1315789), (17621, 1200720), (20012, 1057260), (21040, 1005603), (25015, 845808), (30018, 704840), (31560, 670402), (35242, 600360), (40024, 528630), (50030, 422904), (52863, 400240), (60036, 352420), (63120, 335201), (70484, 300180), (75045, 281936), (80048, 264315), (88105, 240144), (100060, 211452), (105726, 200120), (120072, 176210), (140968, 150090)]