20408340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7237}}^1$

素因数の和:7296

約数の個数: 48

約数和(自身を含む): 58367232

約数和(自身を除く): 37958892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7237, 14474, 21711, 28948, 36185, 43422, 72370, 86844, 108555, 144740, 217110, 340139, 434220, 680278, 1020417, 1360556, 1700695, 2040834, 3401390, 4081668, 5102085, 6802780, 10204170, 20408340]

約数ペア:

[(1, 20408340), (2, 10204170), (3, 6802780), (4, 5102085), (5, 4081668), (6, 3401390), (10, 2040834), (12, 1700695), (15, 1360556), (20, 1020417), (30, 680278), (47, 434220), (60, 340139), (94, 217110), (141, 144740), (188, 108555), (235, 86844), (282, 72370), (470, 43422), (564, 36185), (705, 28948), (940, 21711), (1410, 14474), (2820, 7237)]