20627320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3203}}^1$

素因数の和:3244

約数の個数: 64

約数和(自身を含む): 55365120

約数和(自身を除く): 34737800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3203, 3220, 6406, 6440, 12812, 16015, 22421, 25624, 32030, 44842, 64060, 73669, 89684, 112105, 128120, 147338, 179368, 224210, 294676, 368345, 448420, 515683, 589352, 736690, 896840, 1031366, 1473380, 2062732, 2578415, 2946760, 4125464, 5156830, 10313660, 20627320]

約数ペア:

[(1, 20627320), (2, 10313660), (4, 5156830), (5, 4125464), (7, 2946760), (8, 2578415), (10, 2062732), (14, 1473380), (20, 1031366), (23, 896840), (28, 736690), (35, 589352), (40, 515683), (46, 448420), (56, 368345), (70, 294676), (92, 224210), (115, 179368), (140, 147338), (161, 128120), (184, 112105), (230, 89684), (280, 73669), (322, 64060), (460, 44842), (644, 32030), (805, 25624), (920, 22421), (1288, 16015), (1610, 12812), (3203, 6440), (3220, 6406)]