About the Number
381885280
2進数表記:10110110000110001101101100000
漢数字表記:三億八千百八十八万五千二百八十
素因数分解:
素因数の和:717
約数の個数: 192
約数和(自身を含む): 1128701952
約数和(自身を除く): 746816672
約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 31, 32, 34, 35, 40, 56, 62, 68, 70, 80, 85, 112, 119, 124, 136, 140, 155, 160, 170, 217, 224, 238, 248, 272, 280, 310, 340, 434, 476, 496, 527, 544, 560, 595, 620, 647, 680, 868, 952, 992, 1054, 1085, 1120, 1190, 1240, 1294, 1360, 1736, 1904, 2108, 2170, 2380, 2480, 2588, 2635, 2720, 3235, 3472, 3689, 3808, 4216, 4340, 4529, 4760, 4960, 5176, 5270, 6470, 6944, 7378, 8432, 8680, 9058, 9520, 10352, 10540, 10999, 12940, 14756, 16864, 17360, 18116, 18445, 19040, 20057, 20704, 21080, 21998, 22645, 25880, 29512, 34720, 36232, 36890, 40114, 42160, 43996, 45290, 51760, 54995, 59024, 72464, 73780, 76993, 80228, 84320, 87992, 90580, 100285, 103520, 109990, 118048, 140399, 144928, 147560, 153986, 160456, 175984, 181160, 200570, 219980, 280798, 295120, 307972, 320912, 340969, 351968, 362320, 384965, 401140, 439960, 561596, 590240, 615944, 641824, 681938, 701995, 724640, 769930, 802280, 879920, 1123192, 1231888, 1363876, 1403990, 1539860, 1604560, 1704845, 1759840, 2246384, 2386783, 2463776, 2727752, 2807980, 3079720, 3209120, 3409690, 4492768, 4773566, 5455504, 5615960, 6159440, 6819380, 9547132, 10911008, 11231920, 11933915, 12318880, 13638760, 19094264, 22463840, 23867830, 27277520, 38188528, 47735660, 54555040, 76377056, 95471320, 190942640, 381885280]
約数ペア:
[(1, 381885280), (2, 190942640), (4, 95471320), (5, 76377056), (7, 54555040), (8, 47735660), (10, 38188528), (14, 27277520), (16, 23867830), (17, 22463840), (20, 19094264), (28, 13638760), (31, 12318880), (32, 11933915), (34, 11231920), (35, 10911008), (40, 9547132), (56, 6819380), (62, 6159440), (68, 5615960), (70, 5455504), (80, 4773566), (85, 4492768), (112, 3409690), (119, 3209120), (124, 3079720), (136, 2807980), (140, 2727752), (155, 2463776), (160, 2386783), (170, 2246384), (217, 1759840), (224, 1704845), (238, 1604560), (248, 1539860), (272, 1403990), (280, 1363876), (310, 1231888), (340, 1123192), (434, 879920), (476, 802280), (496, 769930), (527, 724640), (544, 701995), (560, 681938), (595, 641824), (620, 615944), (647, 590240), (680, 561596), (868, 439960), (952, 401140), (992, 384965), (1054, 362320), (1085, 351968), (1120, 340969), (1190, 320912), (1240, 307972), (1294, 295120), (1360, 280798), (1736, 219980), (1904, 200570), (2108, 181160), (2170, 175984), (2380, 160456), (2480, 153986), (2588, 147560), (2635, 144928), (2720, 140399), (3235, 118048), (3472, 109990), (3689, 103520), (3808, 100285), (4216, 90580), (4340, 87992), (4529, 84320), (4760, 80228), (4960, 76993), (5176, 73780), (5270, 72464), (6470, 59024), (6944, 54995), (7378, 51760), (8432, 45290), (8680, 43996), (9058, 42160), (9520, 40114), (10352, 36890), (10540, 36232), (10999, 34720), (12940, 29512), (14756, 25880), (16864, 22645), (17360, 21998), (18116, 21080), (18445, 20704), (19040, 20057)]このpageの処理時間: 0.008839607238769531 seconds