About the Number

27991402880

27991402879 ← → 27991402881

2進数表記:11010000100011010101110100110000000

漢数字表記:二百七十九億九千百四十万二千八百八十

素因数分解:

2 7 × 5 1 × 7 2 × 31 1 × 28793 1

素因数の和:28857
約数の個数: 192
約数和(自身を含む): 80355991680
約数和(自身を除く): 52364588800

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 160, 196, 217, 224, 245, 248, 280, 310, 320, 392, 434, 448, 490, 496, 560, 620, 640, 784, 868, 896, 980, 992, 1085, 1120, 1240, 1519, 1568, 1736, 1960, 1984, 2170, 2240, 2480, 3038, 3136, 3472, 3920, 3968, 4340, 4480, 4960, 6076, 6272, 6944, 7595, 7840, 8680, 9920, 12152, 13888, 15190, 15680, 17360, 19840, 24304, 27776, 28793, 30380, 31360, 34720, 48608, 57586, 60760, 69440, 97216, 115172, 121520, 138880, 143965, 194432, 201551, 230344, 243040, 287930, 403102, 460688, 486080, 575860, 806204, 892583, 921376, 972160, 1007755, 1151720, 1410857, 1612408, 1785166, 1842752, 2015510, 2303440, 2821714, 3224816, 3570332, 3685504, 4031020, 4462915, 4606880, 5643428, 6248081, 6449632, 7054285, 7140664, 8062040, 8925830, 9213760, 11286856, 12496162, 12899264, 14108570, 14281328, 16124080, 17851660, 18427520, 22573712, 24992324, 25798528, 28217140, 28562656, 31240405, 32248160, 35703320, 43736567, 45147424, 49984648, 56434280, 57125312, 62480810, 64496320, 71406640, 87473134, 90294848, 99969296, 112868560, 114250624, 124961620, 128992640, 142813280, 174946268, 180589696, 199938592, 218682835, 225737120, 249923240, 285626560, 349892536, 399877184, 437365670, 451474240, 499846480, 571253120, 699785072, 799754368, 874731340, 902948480, 999692960, 1399570144, 1749462680, 1999385920, 2799140288, 3498925360, 3998771840, 5598280576, 6997850720, 13995701440, 27991402880]

約数ペア:
[(1, 27991402880), (2, 13995701440), (4, 6997850720), (5, 5598280576), (7, 3998771840), (8, 3498925360), (10, 2799140288), (14, 1999385920), (16, 1749462680), (20, 1399570144), (28, 999692960), (31, 902948480), (32, 874731340), (35, 799754368), (40, 699785072), (49, 571253120), (56, 499846480), (62, 451474240), (64, 437365670), (70, 399877184), (80, 349892536), (98, 285626560), (112, 249923240), (124, 225737120), (128, 218682835), (140, 199938592), (155, 180589696), (160, 174946268), (196, 142813280), (217, 128992640), (224, 124961620), (245, 114250624), (248, 112868560), (280, 99969296), (310, 90294848), (320, 87473134), (392, 71406640), (434, 64496320), (448, 62480810), (490, 57125312), (496, 56434280), (560, 49984648), (620, 45147424), (640, 43736567), (784, 35703320), (868, 32248160), (896, 31240405), (980, 28562656), (992, 28217140), (1085, 25798528), (1120, 24992324), (1240, 22573712), (1519, 18427520), (1568, 17851660), (1736, 16124080), (1960, 14281328), (1984, 14108570), (2170, 12899264), (2240, 12496162), (2480, 11286856), (3038, 9213760), (3136, 8925830), (3472, 8062040), (3920, 7140664), (3968, 7054285), (4340, 6449632), (4480, 6248081), (4960, 5643428), (6076, 4606880), (6272, 4462915), (6944, 4031020), (7595, 3685504), (7840, 3570332), (8680, 3224816), (9920, 2821714), (12152, 2303440), (13888, 2015510), (15190, 1842752), (15680, 1785166), (17360, 1612408), (19840, 1410857), (24304, 1151720), (27776, 1007755), (28793, 972160), (30380, 921376), (31360, 892583), (34720, 806204), (48608, 575860), (57586, 486080), (60760, 460688), (69440, 403102), (97216, 287930), (115172, 243040), (121520, 230344), (138880, 201551), (143965, 194432)]

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