81690290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{5669}}^1$

素因数の和:5818

約数の個数: 32

約数和(自身を含む): 161663040

約数和(自身を除く): 79972750

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 131, 262, 655, 1310, 1441, 2882, 5669, 7205, 11338, 14410, 28345, 56690, 62359, 124718, 311795, 623590, 742639, 1485278, 3713195, 7426390, 8169029, 16338058, 40845145, 81690290]

約数ペア:

[(1, 81690290), (2, 40845145), (5, 16338058), (10, 8169029), (11, 7426390), (22, 3713195), (55, 1485278), (110, 742639), (131, 623590), (262, 311795), (655, 124718), (1310, 62359), (1441, 56690), (2882, 28345), (5669, 14410), (7205, 11338)]