277621120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2056

約数の個数: 128

約数和(自身を含む): 783360000

約数和(自身を除く): 505738880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 1999, 2170, 2240, 2480, 3472, 3968, 3998, 4340, 4480, 4960, 6944, 7996, 8680, 9920, 9995, 13888, 13993, 15992, 17360, 19840, 19990, 27776, 27986, 31984, 34720, 39980, 55972, 61969, 63968, 69440, 69965, 79960, 111944, 123938, 127936, 138880, 139930, 159920, 223888, 247876, 255872, 279860, 309845, 319840, 433783, 447776, 495752, 559720, 619690, 639680, 867566, 895552, 991504, 1119440, 1239380, 1279360, 1735132, 1791104, 1983008, 2168915, 2238880, 2478760, 3470264, 3966016, 4337830, 4477760, 4957520, 6940528, 7932032, 8675660, 8955520, 9915040, 13881056, 17351320, 19830080, 27762112, 34702640, 39660160, 55524224, 69405280, 138810560, 277621120]

約数ペア:

[(1, 277621120), (2, 138810560), (4, 69405280), (5, 55524224), (7, 39660160), (8, 34702640), (10, 27762112), (14, 19830080), (16, 17351320), (20, 13881056), (28, 9915040), (31, 8955520), (32, 8675660), (35, 7932032), (40, 6940528), (56, 4957520), (62, 4477760), (64, 4337830), (70, 3966016), (80, 3470264), (112, 2478760), (124, 2238880), (128, 2168915), (140, 1983008), (155, 1791104), (160, 1735132), (217, 1279360), (224, 1239380), (248, 1119440), (280, 991504), (310, 895552), (320, 867566), (434, 639680), (448, 619690), (496, 559720), (560, 495752), (620, 447776), (640, 433783), (868, 319840), (896, 309845), (992, 279860), (1085, 255872), (1120, 247876), (1240, 223888), (1736, 159920), (1984, 139930), (1999, 138880), (2170, 127936), (2240, 123938), (2480, 111944), (3472, 79960), (3968, 69965), (3998, 69440), (4340, 63968), (4480, 61969), (4960, 55972), (6944, 39980), (7996, 34720), (8680, 31984), (9920, 27986), (9995, 27776), (13888, 19990), (13993, 19840), (15992, 17360)]