644596708

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1\times {\mathrm{673}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 1310471680

約数和(自身を除く): 665874972

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 433, 553, 673, 866, 1106, 1346, 1732, 2212, 2692, 3031, 4711, 6062, 9422, 12124, 18844, 34207, 53167, 68414, 106334, 136828, 212668, 239449, 291409, 372169, 478898, 582818, 744338, 957796, 1165636, 1488676, 2039863, 4079726, 8159452, 23021311, 46042622, 92085244, 161149177, 322298354, 644596708]

約数ペア:

[(1, 644596708), (2, 322298354), (4, 161149177), (7, 92085244), (14, 46042622), (28, 23021311), (79, 8159452), (158, 4079726), (316, 2039863), (433, 1488676), (553, 1165636), (673, 957796), (866, 744338), (1106, 582818), (1346, 478898), (1732, 372169), (2212, 291409), (2692, 239449), (3031, 212668), (4711, 136828), (6062, 106334), (9422, 68414), (12124, 53167), (18844, 34207)]