638841280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2357}}^1$

素因数の和:2403

約数の個数: 168

約数和(自身を含む): 1911790944

約数和(自身を除く): 1272949664

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 121, 140, 154, 160, 176, 220, 224, 242, 280, 308, 320, 352, 385, 440, 448, 484, 560, 605, 616, 704, 770, 847, 880, 968, 1120, 1210, 1232, 1540, 1694, 1760, 1936, 2240, 2357, 2420, 2464, 3080, 3388, 3520, 3872, 4235, 4714, 4840, 4928, 6160, 6776, 7744, 8470, 9428, 9680, 11785, 12320, 13552, 16499, 16940, 18856, 19360, 23570, 24640, 25927, 27104, 32998, 33880, 37712, 38720, 47140, 51854, 54208, 65996, 67760, 75424, 82495, 94280, 103708, 129635, 131992, 135520, 150848, 164990, 181489, 188560, 207416, 259270, 263984, 271040, 285197, 329980, 362978, 377120, 414832, 518540, 527968, 570394, 659960, 725956, 754240, 829664, 907445, 1037080, 1055936, 1140788, 1319920, 1425985, 1451912, 1659328, 1814890, 1996379, 2074160, 2281576, 2639840, 2851970, 2903824, 3629780, 3992758, 4148320, 4563152, 5279680, 5703940, 5807648, 7259560, 7985516, 8296640, 9126304, 9981895, 11407880, 11615296, 14519120, 15971032, 18252608, 19963790, 22815760, 29038240, 31942064, 39927580, 45631520, 58076480, 63884128, 79855160, 91263040, 127768256, 159710320, 319420640, 638841280]

約数ペア:

[(1, 638841280), (2, 319420640), (4, 159710320), (5, 127768256), (7, 91263040), (8, 79855160), (10, 63884128), (11, 58076480), (14, 45631520), (16, 39927580), (20, 31942064), (22, 29038240), (28, 22815760), (32, 19963790), (35, 18252608), (40, 15971032), (44, 14519120), (55, 11615296), (56, 11407880), (64, 9981895), (70, 9126304), (77, 8296640), (80, 7985516), (88, 7259560), (110, 5807648), (112, 5703940), (121, 5279680), (140, 4563152), (154, 4148320), (160, 3992758), (176, 3629780), (220, 2903824), (224, 2851970), (242, 2639840), (280, 2281576), (308, 2074160), (320, 1996379), (352, 1814890), (385, 1659328), (440, 1451912), (448, 1425985), (484, 1319920), (560, 1140788), (605, 1055936), (616, 1037080), (704, 907445), (770, 829664), (847, 754240), (880, 725956), (968, 659960), (1120, 570394), (1210, 527968), (1232, 518540), (1540, 414832), (1694, 377120), (1760, 362978), (1936, 329980), (2240, 285197), (2357, 271040), (2420, 263984), (2464, 259270), (3080, 207416), (3388, 188560), (3520, 181489), (3872, 164990), (4235, 150848), (4714, 135520), (4840, 131992), (4928, 129635), (6160, 103708), (6776, 94280), (7744, 82495), (8470, 75424), (9428, 67760), (9680, 65996), (11785, 54208), (12320, 51854), (13552, 47140), (16499, 38720), (16940, 37712), (18856, 33880), (19360, 32998), (23570, 27104), (24640, 25927)]