320460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{109}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 1053360

約数和(自身を除く): 732900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 109, 140, 147, 196, 210, 218, 245, 294, 327, 420, 436, 490, 545, 588, 654, 735, 763, 980, 1090, 1308, 1470, 1526, 1635, 2180, 2289, 2940, 3052, 3270, 3815, 4578, 5341, 6540, 7630, 9156, 10682, 11445, 15260, 16023, 21364, 22890, 26705, 32046, 45780, 53410, 64092, 80115, 106820, 160230, 320460]

約数ペア:

[(1, 320460), (2, 160230), (3, 106820), (4, 80115), (5, 64092), (6, 53410), (7, 45780), (10, 32046), (12, 26705), (14, 22890), (15, 21364), (20, 16023), (21, 15260), (28, 11445), (30, 10682), (35, 9156), (42, 7630), (49, 6540), (60, 5341), (70, 4578), (84, 3815), (98, 3270), (105, 3052), (109, 2940), (140, 2289), (147, 2180), (196, 1635), (210, 1526), (218, 1470), (245, 1308), (294, 1090), (327, 980), (420, 763), (436, 735), (490, 654), (545, 588)]