390097960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1091}}^1\times {\mathrm{1277}}^1$

素因数の和:2386

約数の個数: 64

約数和(自身を含む): 1004814720

約数和(自身を除く): 614716760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1091, 1277, 2182, 2554, 4364, 5108, 5455, 6385, 7637, 8728, 8939, 10216, 10910, 12770, 15274, 17878, 21820, 25540, 30548, 35756, 38185, 43640, 44695, 51080, 61096, 71512, 76370, 89390, 152740, 178780, 305480, 357560, 1393207, 2786414, 5572828, 6966035, 9752449, 11145656, 13932070, 19504898, 27864140, 39009796, 48762245, 55728280, 78019592, 97524490, 195048980, 390097960]

約数ペア:

[(1, 390097960), (2, 195048980), (4, 97524490), (5, 78019592), (7, 55728280), (8, 48762245), (10, 39009796), (14, 27864140), (20, 19504898), (28, 13932070), (35, 11145656), (40, 9752449), (56, 6966035), (70, 5572828), (140, 2786414), (280, 1393207), (1091, 357560), (1277, 305480), (2182, 178780), (2554, 152740), (4364, 89390), (5108, 76370), (5455, 71512), (6385, 61096), (7637, 51080), (8728, 44695), (8939, 43640), (10216, 38185), (10910, 35756), (12770, 30548), (15274, 25540), (17878, 21820)]