665388430768

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2687}}^1\times {\mathrm{5147}}^1$

素因数の和:7970

約数の個数: 80

約数和(自身を含む): 1345257897984

約数和(自身を除く): 679869467216

約数列:

[1, 2, 4, 8, 16, 31, 62, 97, 124, 194, 248, 388, 496, 776, 1552, 2687, 3007, 5147, 5374, 6014, 10294, 10748, 12028, 20588, 21496, 24056, 41176, 42992, 48112, 82352, 83297, 159557, 166594, 260639, 319114, 333188, 499259, 521278, 638228, 666376, 998518, 1042556, 1276456, 1332752, 1997036, 2085112, 2552912, 3994072, 4170224, 7988144, 8079809, 13829989, 15477029, 16159618, 27659978, 30954058, 32319236, 55319956, 61908116, 64638472, 110639912, 123816232, 129276944, 221279824, 247632464, 428729659, 857459318, 1341508933, 1714918636, 2683017866, 3429837272, 5366035732, 6859674544, 10732071464, 21464142928, 41586776923, 83173553846, 166347107692, 332694215384, 665388430768]

約数ペア:

[(1, 665388430768), (2, 332694215384), (4, 166347107692), (8, 83173553846), (16, 41586776923), (31, 21464142928), (62, 10732071464), (97, 6859674544), (124, 5366035732), (194, 3429837272), (248, 2683017866), (388, 1714918636), (496, 1341508933), (776, 857459318), (1552, 428729659), (2687, 247632464), (3007, 221279824), (5147, 129276944), (5374, 123816232), (6014, 110639912), (10294, 64638472), (10748, 61908116), (12028, 55319956), (20588, 32319236), (21496, 30954058), (24056, 27659978), (41176, 16159618), (42992, 15477029), (48112, 13829989), (82352, 8079809), (83297, 7988144), (159557, 4170224), (166594, 3994072), (260639, 2552912), (319114, 2085112), (333188, 1997036), (499259, 1332752), (521278, 1276456), (638228, 1042556), (666376, 998518)]