28851410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{643}}^1$

素因数の和:1298

約数の個数: 32

約数和(自身を含む): 59536512

約数和(自身を除く): 30685102

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 641, 643, 1282, 1286, 3205, 3215, 4487, 4501, 6410, 6430, 8974, 9002, 22435, 22505, 44870, 45010, 412163, 824326, 2060815, 2885141, 4121630, 5770282, 14425705, 28851410]

約数ペア:

[(1, 28851410), (2, 14425705), (5, 5770282), (7, 4121630), (10, 2885141), (14, 2060815), (35, 824326), (70, 412163), (641, 45010), (643, 44870), (1282, 22505), (1286, 22435), (3205, 9002), (3215, 8974), (4487, 6430), (4501, 6410)]