18188240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32479}}^1$

素因数の和:32499

約数の個数: 40

約数和(自身を含む): 48330240

約数和(自身を除く): 30142000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32479, 64958, 129916, 162395, 227353, 259832, 324790, 454706, 519664, 649580, 909412, 1136765, 1299160, 1818824, 2273530, 2598320, 3637648, 4547060, 9094120, 18188240]

約数ペア:

[(1, 18188240), (2, 9094120), (4, 4547060), (5, 3637648), (7, 2598320), (8, 2273530), (10, 1818824), (14, 1299160), (16, 1136765), (20, 909412), (28, 649580), (35, 519664), (40, 454706), (56, 324790), (70, 259832), (80, 227353), (112, 162395), (140, 129916), (280, 64958), (560, 32479)]