About the Number
121721280
2進数表記:111010000010101000111000000
漢数字表記:一億二千百七十二万千二百八十
素因数分解:
素因数の和:1354
約数の個数: 112
約数和(自身を含む): 390534144
約数和(自身を除く): 268812864
約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 103, 120, 160, 192, 206, 240, 309, 320, 412, 480, 515, 618, 824, 960, 1030, 1231, 1236, 1545, 1648, 2060, 2462, 2472, 3090, 3296, 3693, 4120, 4924, 4944, 6155, 6180, 6592, 7386, 8240, 9848, 9888, 12310, 12360, 14772, 16480, 18465, 19696, 19776, 24620, 24720, 29544, 32960, 36930, 39392, 49240, 49440, 59088, 73860, 78784, 98480, 98880, 118176, 126793, 147720, 196960, 236352, 253586, 295440, 380379, 393920, 507172, 590880, 633965, 760758, 1014344, 1181760, 1267930, 1521516, 1901895, 2028688, 2535860, 3043032, 3803790, 4057376, 5071720, 6086064, 7607580, 8114752, 10143440, 12172128, 15215160, 20286880, 24344256, 30430320, 40573760, 60860640, 121721280]
約数ペア:
[(1, 121721280), (2, 60860640), (3, 40573760), (4, 30430320), (5, 24344256), (6, 20286880), (8, 15215160), (10, 12172128), (12, 10143440), (15, 8114752), (16, 7607580), (20, 6086064), (24, 5071720), (30, 4057376), (32, 3803790), (40, 3043032), (48, 2535860), (60, 2028688), (64, 1901895), (80, 1521516), (96, 1267930), (103, 1181760), (120, 1014344), (160, 760758), (192, 633965), (206, 590880), (240, 507172), (309, 393920), (320, 380379), (412, 295440), (480, 253586), (515, 236352), (618, 196960), (824, 147720), (960, 126793), (1030, 118176), (1231, 98880), (1236, 98480), (1545, 78784), (1648, 73860), (2060, 59088), (2462, 49440), (2472, 49240), (3090, 39392), (3296, 36930), (3693, 32960), (4120, 29544), (4924, 24720), (4944, 24620), (6155, 19776), (6180, 19696), (6592, 18465), (7386, 16480), (8240, 14772), (9848, 12360), (9888, 12310)]このpageの処理時間: 0.01343989372253418 seconds