988857580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{810539}}^1$

素因数の和:810609

約数の個数: 24

約数和(自身を含む): 2110646160

約数和(自身を除く): 1121788580

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 810539, 1621078, 3242156, 4052695, 8105390, 16210780, 49442879, 98885758, 197771516, 247214395, 494428790, 988857580]

約数ペア:

[(1, 988857580), (2, 494428790), (4, 247214395), (5, 197771516), (10, 98885758), (20, 49442879), (61, 16210780), (122, 8105390), (244, 4052695), (305, 3242156), (610, 1621078), (1220, 810539)]