20562780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{283}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 66415104

約数和(自身を除く): 45852324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 173, 210, 283, 346, 420, 519, 566, 692, 849, 865, 1038, 1132, 1211, 1415, 1698, 1730, 1981, 2076, 2422, 2595, 2830, 3396, 3460, 3633, 3962, 4245, 4844, 5190, 5660, 5943, 6055, 7266, 7924, 8490, 9905, 10380, 11886, 12110, 14532, 16980, 18165, 19810, 23772, 24220, 29715, 36330, 39620, 48959, 59430, 72660, 97918, 118860, 146877, 195836, 244795, 293754, 342713, 489590, 587508, 685426, 734385, 979180, 1028139, 1370852, 1468770, 1713565, 2056278, 2937540, 3427130, 4112556, 5140695, 6854260, 10281390, 20562780]

約数ペア:

[(1, 20562780), (2, 10281390), (3, 6854260), (4, 5140695), (5, 4112556), (6, 3427130), (7, 2937540), (10, 2056278), (12, 1713565), (14, 1468770), (15, 1370852), (20, 1028139), (21, 979180), (28, 734385), (30, 685426), (35, 587508), (42, 489590), (60, 342713), (70, 293754), (84, 244795), (105, 195836), (140, 146877), (173, 118860), (210, 97918), (283, 72660), (346, 59430), (420, 48959), (519, 39620), (566, 36330), (692, 29715), (849, 24220), (865, 23772), (1038, 19810), (1132, 18165), (1211, 16980), (1415, 14532), (1698, 12110), (1730, 11886), (1981, 10380), (2076, 9905), (2422, 8490), (2595, 7924), (2830, 7266), (3396, 6055), (3460, 5943), (3633, 5660), (3962, 5190), (4245, 4844)]