8398180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 20321280

約数和(自身を除く): 11923100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 223, 269, 446, 538, 892, 1076, 1115, 1345, 1561, 1883, 2230, 2690, 3122, 3766, 4460, 5380, 6244, 7532, 7805, 9415, 15610, 18830, 31220, 37660, 59987, 119974, 239948, 299935, 419909, 599870, 839818, 1199740, 1679636, 2099545, 4199090, 8398180]

約数ペア:

[(1, 8398180), (2, 4199090), (4, 2099545), (5, 1679636), (7, 1199740), (10, 839818), (14, 599870), (20, 419909), (28, 299935), (35, 239948), (70, 119974), (140, 59987), (223, 37660), (269, 31220), (446, 18830), (538, 15610), (892, 9415), (1076, 7805), (1115, 7532), (1345, 6244), (1561, 5380), (1883, 4460), (2230, 3766), (2690, 3122)]