28401310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{643}}^1$

素因数の和:1288

約数の個数: 32

約数和(自身を含む): 58609152

約数和(自身を除く): 30207842

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 631, 643, 1262, 1286, 3155, 3215, 4417, 4501, 6310, 6430, 8834, 9002, 22085, 22505, 44170, 45010, 405733, 811466, 2028665, 2840131, 4057330, 5680262, 14200655, 28401310]

約数ペア:

[(1, 28401310), (2, 14200655), (5, 5680262), (7, 4057330), (10, 2840131), (14, 2028665), (35, 811466), (70, 405733), (631, 45010), (643, 44170), (1262, 22505), (1286, 22085), (3155, 9002), (3215, 8834), (4417, 6430), (4501, 6310)]