2008991890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109841}}^1$

素因数の和:109938

約数の個数: 32

約数和(自身を含む): 3796139520

約数和(自身を除く): 1787147630

約数列:

[1, 2, 5, 10, 31, 59, 62, 118, 155, 295, 310, 590, 1829, 3658, 9145, 18290, 109841, 219682, 549205, 1098410, 3405071, 6480619, 6810142, 12961238, 17025355, 32403095, 34050710, 64806190, 200899189, 401798378, 1004495945, 2008991890]

約数ペア:

[(1, 2008991890), (2, 1004495945), (5, 401798378), (10, 200899189), (31, 64806190), (59, 34050710), (62, 32403095), (118, 17025355), (155, 12961238), (295, 6810142), (310, 6480619), (590, 3405071), (1829, 1098410), (3658, 549205), (9145, 219682), (18290, 109841)]