668668

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 1580544

約数和(自身を除く): 911876

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 167, 182, 286, 308, 334, 364, 572, 668, 1001, 1169, 1837, 2002, 2171, 2338, 3674, 4004, 4342, 4676, 7348, 8684, 12859, 15197, 23881, 25718, 30394, 47762, 51436, 60788, 95524, 167167, 334334, 668668]

約数ペア:

[(1, 668668), (2, 334334), (4, 167167), (7, 95524), (11, 60788), (13, 51436), (14, 47762), (22, 30394), (26, 25718), (28, 23881), (44, 15197), (52, 12859), (77, 8684), (91, 7348), (143, 4676), (154, 4342), (167, 4004), (182, 3674), (286, 2338), (308, 2171), (334, 2002), (364, 1837), (572, 1169), (668, 1001)]