20761020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16477}}^1$

素因数の和:16499

約数の個数: 72

約数和(自身を含む): 71975904

約数和(自身を除く): 51214884

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 16477, 32954, 49431, 65908, 82385, 98862, 115339, 148293, 164770, 197724, 230678, 247155, 296586, 329540, 346017, 461356, 494310, 576695, 593172, 692034, 741465, 988620, 1038051, 1153390, 1384068, 1482930, 1730085, 2076102, 2306780, 2965860, 3460170, 4152204, 5190255, 6920340, 10380510, 20761020]

約数ペア:

[(1, 20761020), (2, 10380510), (3, 6920340), (4, 5190255), (5, 4152204), (6, 3460170), (7, 2965860), (9, 2306780), (10, 2076102), (12, 1730085), (14, 1482930), (15, 1384068), (18, 1153390), (20, 1038051), (21, 988620), (28, 741465), (30, 692034), (35, 593172), (36, 576695), (42, 494310), (45, 461356), (60, 346017), (63, 329540), (70, 296586), (84, 247155), (90, 230678), (105, 197724), (126, 164770), (140, 148293), (180, 115339), (210, 98862), (252, 82385), (315, 65908), (420, 49431), (630, 32954), (1260, 16477)]