28441420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{911}}^1$

素因数の和:1150

約数の個数: 48

約数和(自身を含む): 68640768

約数和(自身を除く): 40199348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 446, 892, 911, 1115, 1561, 1822, 2230, 3122, 3644, 4460, 4555, 6244, 6377, 7805, 9110, 12754, 15610, 18220, 25508, 31220, 31885, 63770, 127540, 203153, 406306, 812612, 1015765, 1422071, 2031530, 2844142, 4063060, 5688284, 7110355, 14220710, 28441420]

約数ペア:

[(1, 28441420), (2, 14220710), (4, 7110355), (5, 5688284), (7, 4063060), (10, 2844142), (14, 2031530), (20, 1422071), (28, 1015765), (35, 812612), (70, 406306), (140, 203153), (223, 127540), (446, 63770), (892, 31885), (911, 31220), (1115, 25508), (1561, 18220), (1822, 15610), (2230, 12754), (3122, 9110), (3644, 7805), (4460, 6377), (4555, 6244)]