28812660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{571}}^1$

素因数の和:641

約数の個数: 72

約数和(自身を含む): 83699616

約数和(自身を除く): 54886956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 571, 580, 841, 870, 1142, 1682, 1713, 1740, 2284, 2523, 2855, 3364, 3426, 4205, 5046, 5710, 6852, 8410, 8565, 10092, 11420, 12615, 16559, 16820, 17130, 25230, 33118, 34260, 49677, 50460, 66236, 82795, 99354, 165590, 198708, 248385, 331180, 480211, 496770, 960422, 993540, 1440633, 1920844, 2401055, 2881266, 4802110, 5762532, 7203165, 9604220, 14406330, 28812660]

約数ペア:

[(1, 28812660), (2, 14406330), (3, 9604220), (4, 7203165), (5, 5762532), (6, 4802110), (10, 2881266), (12, 2401055), (15, 1920844), (20, 1440633), (29, 993540), (30, 960422), (58, 496770), (60, 480211), (87, 331180), (116, 248385), (145, 198708), (174, 165590), (290, 99354), (348, 82795), (435, 66236), (571, 50460), (580, 49677), (841, 34260), (870, 33118), (1142, 25230), (1682, 17130), (1713, 16820), (1740, 16559), (2284, 12615), (2523, 11420), (2855, 10092), (3364, 8565), (3426, 8410), (4205, 6852), (5046, 5710)]