639745008

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{11681}}^1$

素因数の和:11862

約数の個数: 80

約数和(自身を含む): 1900521216

約数和(自身を除く): 1260776208

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 163, 168, 326, 336, 489, 652, 978, 1141, 1304, 1956, 2282, 2608, 3423, 3912, 4564, 6846, 7824, 9128, 11681, 13692, 18256, 23362, 27384, 35043, 46724, 54768, 70086, 81767, 93448, 140172, 163534, 186896, 245301, 280344, 327068, 490602, 560688, 654136, 981204, 1308272, 1904003, 1962408, 3808006, 3924816, 5712009, 7616012, 11424018, 13328021, 15232024, 22848036, 26656042, 30464048, 39984063, 45696072, 53312084, 79968126, 91392144, 106624168, 159936252, 213248336, 319872504, 639745008]

約数ペア:

[(1, 639745008), (2, 319872504), (3, 213248336), (4, 159936252), (6, 106624168), (7, 91392144), (8, 79968126), (12, 53312084), (14, 45696072), (16, 39984063), (21, 30464048), (24, 26656042), (28, 22848036), (42, 15232024), (48, 13328021), (56, 11424018), (84, 7616012), (112, 5712009), (163, 3924816), (168, 3808006), (326, 1962408), (336, 1904003), (489, 1308272), (652, 981204), (978, 654136), (1141, 560688), (1304, 490602), (1956, 327068), (2282, 280344), (2608, 245301), (3423, 186896), (3912, 163534), (4564, 140172), (6846, 93448), (7824, 81767), (9128, 70086), (11681, 54768), (13692, 46724), (18256, 35043), (23362, 27384)]