255780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{29}}^1$

素因数の和:58

約数の個数: 108

約数和(自身を含む): 933660

約数和(自身を除く): 677880

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 29, 30, 35, 36, 42, 45, 49, 58, 60, 63, 70, 84, 87, 90, 98, 105, 116, 126, 140, 145, 147, 174, 180, 196, 203, 210, 245, 252, 261, 290, 294, 315, 348, 406, 420, 435, 441, 490, 522, 580, 588, 609, 630, 735, 812, 870, 882, 980, 1015, 1044, 1218, 1260, 1305, 1421, 1470, 1740, 1764, 1827, 2030, 2205, 2436, 2610, 2842, 2940, 3045, 3654, 4060, 4263, 4410, 5220, 5684, 6090, 7105, 7308, 8526, 8820, 9135, 12180, 12789, 14210, 17052, 18270, 21315, 25578, 28420, 36540, 42630, 51156, 63945, 85260, 127890, 255780]

約数ペア:

[(1, 255780), (2, 127890), (3, 85260), (4, 63945), (5, 51156), (6, 42630), (7, 36540), (9, 28420), (10, 25578), (12, 21315), (14, 18270), (15, 17052), (18, 14210), (20, 12789), (21, 12180), (28, 9135), (29, 8820), (30, 8526), (35, 7308), (36, 7105), (42, 6090), (45, 5684), (49, 5220), (58, 4410), (60, 4263), (63, 4060), (70, 3654), (84, 3045), (87, 2940), (90, 2842), (98, 2610), (105, 2436), (116, 2205), (126, 2030), (140, 1827), (145, 1764), (147, 1740), (174, 1470), (180, 1421), (196, 1305), (203, 1260), (210, 1218), (245, 1044), (252, 1015), (261, 980), (290, 882), (294, 870), (315, 812), (348, 735), (406, 630), (420, 609), (435, 588), (441, 580), (490, 522)]