668896844

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{557}}^2$

素因数の和:1143

約数の個数: 54

約数和(自身を含む): 1488143916

約数和(自身を除く): 819247072

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 557, 1078, 1114, 2156, 2228, 3899, 6127, 7798, 12254, 15596, 24508, 27293, 42889, 54586, 85778, 109172, 171556, 300223, 310249, 600446, 620498, 1200892, 1240996, 2171743, 3412739, 4343486, 6825478, 8686972, 13650956, 15202201, 23889173, 30404402, 47778346, 60808804, 95556692, 167224211, 334448422, 668896844]

約数ペア:

[(1, 668896844), (2, 334448422), (4, 167224211), (7, 95556692), (11, 60808804), (14, 47778346), (22, 30404402), (28, 23889173), (44, 15202201), (49, 13650956), (77, 8686972), (98, 6825478), (154, 4343486), (196, 3412739), (308, 2171743), (539, 1240996), (557, 1200892), (1078, 620498), (1114, 600446), (2156, 310249), (2228, 300223), (3899, 171556), (6127, 109172), (7798, 85778), (12254, 54586), (15596, 42889), (24508, 27293)]