8996540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 21772800

約数和(自身を除く): 12776260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 359, 716, 718, 895, 1253, 1436, 1790, 1795, 2506, 2513, 3580, 3590, 5012, 5026, 6265, 7180, 10052, 12530, 12565, 25060, 25130, 50260, 64261, 128522, 257044, 321305, 449827, 642610, 899654, 1285220, 1799308, 2249135, 4498270, 8996540]

約数ペア:

[(1, 8996540), (2, 4498270), (4, 2249135), (5, 1799308), (7, 1285220), (10, 899654), (14, 642610), (20, 449827), (28, 321305), (35, 257044), (70, 128522), (140, 64261), (179, 50260), (358, 25130), (359, 25060), (716, 12565), (718, 12530), (895, 10052), (1253, 7180), (1436, 6265), (1790, 5026), (1795, 5012), (2506, 3590), (2513, 3580)]