1289744540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9212461}}^1$

素因数の和:9212477

約数の個数: 24

約数和(自身を含む): 3095387232

約数和(自身を除く): 1805642692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9212461, 18424922, 36849844, 46062305, 64487227, 92124610, 128974454, 184249220, 257948908, 322436135, 644872270, 1289744540]

約数ペア:

[(1, 1289744540), (2, 644872270), (4, 322436135), (5, 257948908), (7, 184249220), (10, 128974454), (14, 92124610), (20, 64487227), (28, 46062305), (35, 36849844), (70, 18424922), (140, 9212461)]