19803120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{757}}^1$

素因数の和:882

約数の個数: 80

約数和(自身を含む): 62034720

約数和(自身を除く): 42231600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 757, 872, 1090, 1308, 1514, 1635, 1744, 2180, 2271, 2616, 3028, 3270, 3785, 4360, 4542, 5232, 6056, 6540, 7570, 8720, 9084, 11355, 12112, 13080, 15140, 18168, 22710, 26160, 30280, 36336, 45420, 60560, 82513, 90840, 165026, 181680, 247539, 330052, 412565, 495078, 660104, 825130, 990156, 1237695, 1320208, 1650260, 1980312, 2475390, 3300520, 3960624, 4950780, 6601040, 9901560, 19803120]

約数ペア:

[(1, 19803120), (2, 9901560), (3, 6601040), (4, 4950780), (5, 3960624), (6, 3300520), (8, 2475390), (10, 1980312), (12, 1650260), (15, 1320208), (16, 1237695), (20, 990156), (24, 825130), (30, 660104), (40, 495078), (48, 412565), (60, 330052), (80, 247539), (109, 181680), (120, 165026), (218, 90840), (240, 82513), (327, 60560), (436, 45420), (545, 36336), (654, 30280), (757, 26160), (872, 22710), (1090, 18168), (1308, 15140), (1514, 13080), (1635, 12112), (1744, 11355), (2180, 9084), (2271, 8720), (2616, 7570), (3028, 6540), (3270, 6056), (3785, 5232), (4360, 4542)]