27980030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{2131}}^1$

素因数の和:2252

約数の個数: 32

約数和(自身を含む): 54800928

約数和(自身を除く): 26820898

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 2131, 2626, 4262, 6565, 10655, 13130, 21310, 27703, 55406, 138515, 215231, 277030, 430462, 1076155, 2152310, 2798003, 5596006, 13990015, 27980030]

約数ペア:

[(1, 27980030), (2, 13990015), (5, 5596006), (10, 2798003), (13, 2152310), (26, 1076155), (65, 430462), (101, 277030), (130, 215231), (202, 138515), (505, 55406), (1010, 27703), (1313, 21310), (2131, 13130), (2626, 10655), (4262, 6565)]