321526380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{765539}}^1$

素因数の和:765558

約数の個数: 48

約数和(自身を含む): 1028885760

約数和(自身を除く): 707359380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 765539, 1531078, 2296617, 3062156, 3827695, 4593234, 5358773, 7655390, 9186468, 10717546, 11483085, 15310780, 16076319, 21435092, 22966170, 26793865, 32152638, 45932340, 53587730, 64305276, 80381595, 107175460, 160763190, 321526380]

約数ペア:

[(1, 321526380), (2, 160763190), (3, 107175460), (4, 80381595), (5, 64305276), (6, 53587730), (7, 45932340), (10, 32152638), (12, 26793865), (14, 22966170), (15, 21435092), (20, 16076319), (21, 15310780), (28, 11483085), (30, 10717546), (35, 9186468), (42, 7655390), (60, 5358773), (70, 4593234), (84, 3827695), (105, 3062156), (140, 2296617), (210, 1531078), (420, 765539)]