28780310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{823}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 56064960

約数和(自身を除く): 27284650

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 269, 538, 823, 1345, 1646, 2690, 3497, 4115, 6994, 8230, 10699, 17485, 21398, 34970, 53495, 106990, 221387, 442774, 1106935, 2213870, 2878031, 5756062, 14390155, 28780310]

約数ペア:

[(1, 28780310), (2, 14390155), (5, 5756062), (10, 2878031), (13, 2213870), (26, 1106935), (65, 442774), (130, 221387), (269, 106990), (538, 53495), (823, 34970), (1345, 21398), (1646, 17485), (2690, 10699), (3497, 8230), (4115, 6994)]