About the Number

28736700880

28736700879 ← → 28736700881

2進数表記:11010110000110101110100000111010000

漢数字表記:二百八十七億三千六百七十万八百八十

素因数分解:

2 4 × 5 1 × 29 2 × 431 1 × 991 1

素因数の和:1493
約数の個数: 120
約数和(自身を含む): 69426699264
約数和(自身を除く): 40689998384

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 431, 464, 580, 841, 862, 991, 1160, 1682, 1724, 1982, 2155, 2320, 3364, 3448, 3964, 4205, 4310, 4955, 6728, 6896, 7928, 8410, 8620, 9910, 12499, 13456, 15856, 16820, 17240, 19820, 24998, 28739, 33640, 34480, 39640, 49996, 57478, 62495, 67280, 79280, 99992, 114956, 124990, 143695, 199984, 229912, 249980, 287390, 362471, 427121, 459824, 499960, 574780, 724942, 833431, 854242, 999920, 1149560, 1449884, 1666862, 1708484, 1812355, 2135605, 2299120, 2899768, 3333724, 3416968, 3624710, 4167155, 4271210, 5799536, 6667448, 6833936, 7249420, 8334310, 8542420, 12386509, 13334896, 14498840, 16668620, 17084840, 24773018, 28997680, 33337240, 34169680, 49546036, 61932545, 66674480, 99092072, 123865090, 198184144, 247730180, 359208761, 495460360, 718417522, 990920720, 1436835044, 1796043805, 2873670088, 3592087610, 5747340176, 7184175220, 14368350440, 28736700880]

約数ペア:
[(1, 28736700880), (2, 14368350440), (4, 7184175220), (5, 5747340176), (8, 3592087610), (10, 2873670088), (16, 1796043805), (20, 1436835044), (29, 990920720), (40, 718417522), (58, 495460360), (80, 359208761), (116, 247730180), (145, 198184144), (232, 123865090), (290, 99092072), (431, 66674480), (464, 61932545), (580, 49546036), (841, 34169680), (862, 33337240), (991, 28997680), (1160, 24773018), (1682, 17084840), (1724, 16668620), (1982, 14498840), (2155, 13334896), (2320, 12386509), (3364, 8542420), (3448, 8334310), (3964, 7249420), (4205, 6833936), (4310, 6667448), (4955, 5799536), (6728, 4271210), (6896, 4167155), (7928, 3624710), (8410, 3416968), (8620, 3333724), (9910, 2899768), (12499, 2299120), (13456, 2135605), (15856, 1812355), (16820, 1708484), (17240, 1666862), (19820, 1449884), (24998, 1149560), (28739, 999920), (33640, 854242), (34480, 833431), (39640, 724942), (49996, 574780), (57478, 499960), (62495, 459824), (67280, 427121), (79280, 362471), (99992, 287390), (114956, 249980), (124990, 229912), (143695, 199984)]

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