18994380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3557}}^1$

素因数の和:3658

約数の個数: 48

約数和(自身を含む): 53796960

約数和(自身を除く): 34802580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 3557, 5340, 7114, 10671, 14228, 17785, 21342, 35570, 42684, 53355, 71140, 106710, 213420, 316573, 633146, 949719, 1266292, 1582865, 1899438, 3165730, 3798876, 4748595, 6331460, 9497190, 18994380]

約数ペア:

[(1, 18994380), (2, 9497190), (3, 6331460), (4, 4748595), (5, 3798876), (6, 3165730), (10, 1899438), (12, 1582865), (15, 1266292), (20, 949719), (30, 633146), (60, 316573), (89, 213420), (178, 106710), (267, 71140), (356, 53355), (445, 42684), (534, 35570), (890, 21342), (1068, 17785), (1335, 14228), (1780, 10671), (2670, 7114), (3557, 5340)]