81296880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:284

約数の個数: 240

約数和(自身を含む): 303980544

約数和(自身を除く): 222683664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 49, 56, 60, 62, 70, 80, 84, 93, 98, 105, 112, 120, 124, 140, 147, 155, 168, 186, 196, 210, 217, 223, 240, 245, 248, 280, 294, 310, 336, 372, 392, 420, 434, 446, 465, 490, 496, 560, 588, 620, 651, 669, 735, 744, 784, 840, 868, 892, 930, 980, 1085, 1115, 1176, 1240, 1302, 1338, 1470, 1488, 1519, 1561, 1680, 1736, 1784, 1860, 1960, 2170, 2230, 2352, 2480, 2604, 2676, 2940, 3038, 3122, 3255, 3345, 3472, 3568, 3720, 3920, 4340, 4460, 4557, 4683, 5208, 5352, 5880, 6076, 6244, 6510, 6690, 6913, 7440, 7595, 7805, 8680, 8920, 9114, 9366, 10416, 10704, 10927, 11760, 12152, 12488, 13020, 13380, 13826, 15190, 15610, 17360, 17840, 18228, 18732, 20739, 21854, 22785, 23415, 24304, 24976, 26040, 26760, 27652, 30380, 31220, 32781, 34565, 36456, 37464, 41478, 43708, 45570, 46830, 48391, 52080, 53520, 54635, 55304, 60760, 62440, 65562, 69130, 72912, 74928, 82956, 87416, 91140, 93660, 96782, 103695, 109270, 110608, 121520, 124880, 131124, 138260, 145173, 163905, 165912, 174832, 182280, 187320, 193564, 207390, 218540, 241955, 262248, 276520, 290346, 327810, 331824, 338737, 364560, 374640, 387128, 414780, 437080, 483910, 524496, 553040, 580692, 655620, 677474, 725865, 774256, 829560, 874160, 967820, 1016211, 1161384, 1311240, 1354948, 1451730, 1659120, 1693685, 1935640, 2032422, 2322768, 2622480, 2709896, 2903460, 3387370, 3871280, 4064844, 5081055, 5419792, 5806920, 6774740, 8129688, 10162110, 11613840, 13549480, 16259376, 20324220, 27098960, 40648440, 81296880]

約数ペア:

[(1, 81296880), (2, 40648440), (3, 27098960), (4, 20324220), (5, 16259376), (6, 13549480), (7, 11613840), (8, 10162110), (10, 8129688), (12, 6774740), (14, 5806920), (15, 5419792), (16, 5081055), (20, 4064844), (21, 3871280), (24, 3387370), (28, 2903460), (30, 2709896), (31, 2622480), (35, 2322768), (40, 2032422), (42, 1935640), (48, 1693685), (49, 1659120), (56, 1451730), (60, 1354948), (62, 1311240), (70, 1161384), (80, 1016211), (84, 967820), (93, 874160), (98, 829560), (105, 774256), (112, 725865), (120, 677474), (124, 655620), (140, 580692), (147, 553040), (155, 524496), (168, 483910), (186, 437080), (196, 414780), (210, 387128), (217, 374640), (223, 364560), (240, 338737), (245, 331824), (248, 327810), (280, 290346), (294, 276520), (310, 262248), (336, 241955), (372, 218540), (392, 207390), (420, 193564), (434, 187320), (446, 182280), (465, 174832), (490, 165912), (496, 163905), (560, 145173), (588, 138260), (620, 131124), (651, 124880), (669, 121520), (735, 110608), (744, 109270), (784, 103695), (840, 96782), (868, 93660), (892, 91140), (930, 87416), (980, 82956), (1085, 74928), (1115, 72912), (1176, 69130), (1240, 65562), (1302, 62440), (1338, 60760), (1470, 55304), (1488, 54635), (1519, 53520), (1561, 52080), (1680, 48391), (1736, 46830), (1784, 45570), (1860, 43708), (1960, 41478), (2170, 37464), (2230, 36456), (2352, 34565), (2480, 32781), (2604, 31220), (2676, 30380), (2940, 27652), (3038, 26760), (3122, 26040), (3255, 24976), (3345, 24304), (3472, 23415), (3568, 22785), (3720, 21854), (3920, 20739), (4340, 18732), (4460, 18228), (4557, 17840), (4683, 17360), (5208, 15610), (5352, 15190), (5880, 13826), (6076, 13380), (6244, 13020), (6510, 12488), (6690, 12152), (6913, 11760), (7440, 10927), (7595, 10704), (7805, 10416), (8680, 9366), (8920, 9114)]