404242580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20773}}^1$

素因数の和:20928

約数の個数: 48

約数和(自身を含む): 977208960

約数和(自身を除く): 572966380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 20773, 41546, 83092, 103865, 145411, 207730, 290822, 415460, 581644, 727055, 1454110, 2887447, 2908220, 5774894, 11549788, 14437235, 20212129, 28874470, 40424258, 57748940, 80848516, 101060645, 202121290, 404242580]

約数ペア:

[(1, 404242580), (2, 202121290), (4, 101060645), (5, 80848516), (7, 57748940), (10, 40424258), (14, 28874470), (20, 20212129), (28, 14437235), (35, 11549788), (70, 5774894), (139, 2908220), (140, 2887447), (278, 1454110), (556, 727055), (695, 581644), (973, 415460), (1390, 290822), (1946, 207730), (2780, 145411), (3892, 103865), (4865, 83092), (9730, 41546), (19460, 20773)]