28709240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102533}}^1$

素因数の和:102551

約数の個数: 32

約数和(自身を含む): 73824480

約数和(自身を除く): 45115240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102533, 205066, 410132, 512665, 717731, 820264, 1025330, 1435462, 2050660, 2870924, 3588655, 4101320, 5741848, 7177310, 14354620, 28709240]

約数ペア:

[(1, 28709240), (2, 14354620), (4, 7177310), (5, 5741848), (7, 4101320), (8, 3588655), (10, 2870924), (14, 2050660), (20, 1435462), (28, 1025330), (35, 820264), (40, 717731), (56, 512665), (70, 410132), (140, 205066), (280, 102533)]