7991522240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{1999}}^1$

素因数の和:2091

約数の個数: 168

約数和(自身を含む): 21186648000

約数和(自身を除く): 13195125760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 961, 992, 1040, 1240, 1612, 1922, 1984, 1999, 2015, 2080, 2480, 3224, 3844, 3998, 4030, 4160, 4805, 4960, 6448, 7688, 7996, 8060, 9610, 9920, 9995, 12493, 12896, 15376, 15992, 16120, 19220, 19990, 24986, 25792, 25987, 30752, 31984, 32240, 38440, 39980, 49972, 51974, 61504, 61969, 62465, 63968, 64480, 76880, 79960, 99944, 103948, 123938, 124930, 127936, 128960, 129935, 153760, 159920, 199888, 207896, 247876, 249860, 259870, 307520, 309845, 319840, 399776, 415792, 495752, 499720, 519740, 619690, 639680, 799552, 805597, 831584, 991504, 999440, 1039480, 1239380, 1611194, 1663168, 1921039, 1983008, 1998880, 2078960, 2478760, 3222388, 3842078, 3966016, 3997760, 4027985, 4157920, 4957520, 6444776, 7684156, 8055970, 8315840, 9605195, 9915040, 12889552, 15368312, 16111940, 19210390, 19830080, 24973507, 25779104, 30736624, 32223880, 38420780, 49947014, 51558208, 61473248, 64447760, 76841560, 99894028, 122946496, 124867535, 128895520, 153683120, 199788056, 249735070, 257791040, 307366240, 399576112, 499470140, 614732480, 799152224, 998940280, 1598304448, 1997880560, 3995761120, 7991522240]

約数ペア:

[(1, 7991522240), (2, 3995761120), (4, 1997880560), (5, 1598304448), (8, 998940280), (10, 799152224), (13, 614732480), (16, 499470140), (20, 399576112), (26, 307366240), (31, 257791040), (32, 249735070), (40, 199788056), (52, 153683120), (62, 128895520), (64, 124867535), (65, 122946496), (80, 99894028), (104, 76841560), (124, 64447760), (130, 61473248), (155, 51558208), (160, 49947014), (208, 38420780), (248, 32223880), (260, 30736624), (310, 25779104), (320, 24973507), (403, 19830080), (416, 19210390), (496, 16111940), (520, 15368312), (620, 12889552), (806, 9915040), (832, 9605195), (961, 8315840), (992, 8055970), (1040, 7684156), (1240, 6444776), (1612, 4957520), (1922, 4157920), (1984, 4027985), (1999, 3997760), (2015, 3966016), (2080, 3842078), (2480, 3222388), (3224, 2478760), (3844, 2078960), (3998, 1998880), (4030, 1983008), (4160, 1921039), (4805, 1663168), (4960, 1611194), (6448, 1239380), (7688, 1039480), (7996, 999440), (8060, 991504), (9610, 831584), (9920, 805597), (9995, 799552), (12493, 639680), (12896, 619690), (15376, 519740), (15992, 499720), (16120, 495752), (19220, 415792), (19990, 399776), (24986, 319840), (25792, 309845), (25987, 307520), (30752, 259870), (31984, 249860), (32240, 247876), (38440, 207896), (39980, 199888), (49972, 159920), (51974, 153760), (61504, 129935), (61969, 128960), (62465, 127936), (63968, 124930), (64480, 123938), (76880, 103948), (79960, 99944)]