668880832

素因数分解:

$2^6\times {\mathrm{67}}^1\times {\mathrm{389}}^1\times {\mathrm{401}}^1$

素因数の和:869

約数の個数: 56

約数和(自身を含む): 1353952080

約数和(自身を除く): 685071248

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 134, 268, 389, 401, 536, 778, 802, 1072, 1556, 1604, 2144, 3112, 3208, 4288, 6224, 6416, 12448, 12832, 24896, 25664, 26063, 26867, 52126, 53734, 104252, 107468, 155989, 208504, 214936, 311978, 417008, 429872, 623956, 834016, 859744, 1247912, 1668032, 1719488, 2495824, 4991648, 9983296, 10451263, 20902526, 41805052, 83610104, 167220208, 334440416, 668880832]

約数ペア:

[(1, 668880832), (2, 334440416), (4, 167220208), (8, 83610104), (16, 41805052), (32, 20902526), (64, 10451263), (67, 9983296), (134, 4991648), (268, 2495824), (389, 1719488), (401, 1668032), (536, 1247912), (778, 859744), (802, 834016), (1072, 623956), (1556, 429872), (1604, 417008), (2144, 311978), (3112, 214936), (3208, 208504), (4288, 155989), (6224, 107468), (6416, 104252), (12448, 53734), (12832, 52126), (24896, 26867), (25664, 26063)]