51913995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 100638720

約数和(自身を除く): 48724725

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 41, 93, 105, 123, 155, 205, 217, 287, 389, 465, 615, 651, 861, 1085, 1167, 1271, 1435, 1945, 2723, 3255, 3813, 4305, 5835, 6355, 8169, 8897, 12059, 13615, 15949, 19065, 26691, 36177, 40845, 44485, 47847, 60295, 79745, 84413, 111643, 133455, 180885, 239235, 253239, 334929, 422065, 494419, 558215, 1266195, 1483257, 1674645, 2472095, 3460933, 7416285, 10382799, 17304665, 51913995]

約数ペア:

[(1, 51913995), (3, 17304665), (5, 10382799), (7, 7416285), (15, 3460933), (21, 2472095), (31, 1674645), (35, 1483257), (41, 1266195), (93, 558215), (105, 494419), (123, 422065), (155, 334929), (205, 253239), (217, 239235), (287, 180885), (389, 133455), (465, 111643), (615, 84413), (651, 79745), (861, 60295), (1085, 47847), (1167, 44485), (1271, 40845), (1435, 36177), (1945, 26691), (2723, 19065), (3255, 15949), (3813, 13615), (4305, 12059), (5835, 8897), (6355, 8169)]