81642260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{11003}}^1$

素因数の和:11072

約数の個数: 48

約数和(自身を含む): 199656576

約数和(自身を除く): 118014316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 11003, 22006, 44012, 55015, 77021, 110030, 154042, 220060, 308084, 385105, 583159, 770210, 1166318, 1540420, 2332636, 2915795, 4082113, 5831590, 8164226, 11663180, 16328452, 20410565, 40821130, 81642260]

約数ペア:

[(1, 81642260), (2, 40821130), (4, 20410565), (5, 16328452), (7, 11663180), (10, 8164226), (14, 5831590), (20, 4082113), (28, 2915795), (35, 2332636), (53, 1540420), (70, 1166318), (106, 770210), (140, 583159), (212, 385105), (265, 308084), (371, 220060), (530, 154042), (742, 110030), (1060, 77021), (1484, 55015), (1855, 44012), (3710, 22006), (7420, 11003)]