440897940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{349919}}^1$

素因数の和:349941

約数の個数: 72

約数和(自身を含む): 1528450560

約数和(自身を除く): 1087552620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 349919, 699838, 1049757, 1399676, 1749595, 2099514, 2449433, 3149271, 3499190, 4199028, 4898866, 5248785, 6298542, 6998380, 7348299, 9797732, 10497570, 12247165, 12597084, 14696598, 15746355, 20995140, 22044897, 24494330, 29393196, 31492710, 36741495, 44089794, 48988660, 62985420, 73482990, 88179588, 110224485, 146965980, 220448970, 440897940]

約数ペア:

[(1, 440897940), (2, 220448970), (3, 146965980), (4, 110224485), (5, 88179588), (6, 73482990), (7, 62985420), (9, 48988660), (10, 44089794), (12, 36741495), (14, 31492710), (15, 29393196), (18, 24494330), (20, 22044897), (21, 20995140), (28, 15746355), (30, 14696598), (35, 12597084), (36, 12247165), (42, 10497570), (45, 9797732), (60, 7348299), (63, 6998380), (70, 6298542), (84, 5248785), (90, 4898866), (105, 4199028), (126, 3499190), (140, 3149271), (180, 2449433), (210, 2099514), (252, 1749595), (315, 1399676), (420, 1049757), (630, 699838), (1260, 349919)]