209548140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{179}}^2$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 595444080

約数和(自身を除く): 385895940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 179, 218, 327, 358, 436, 537, 545, 654, 716, 895, 1074, 1090, 1308, 1635, 1790, 2148, 2180, 2685, 3270, 3580, 5370, 6540, 10740, 19511, 32041, 39022, 58533, 64082, 78044, 96123, 97555, 117066, 128164, 160205, 192246, 195110, 234132, 292665, 320410, 384492, 390220, 480615, 585330, 640820, 961230, 1170660, 1922460, 3492469, 6984938, 10477407, 13969876, 17462345, 20954814, 34924690, 41909628, 52387035, 69849380, 104774070, 209548140]

約数ペア:

[(1, 209548140), (2, 104774070), (3, 69849380), (4, 52387035), (5, 41909628), (6, 34924690), (10, 20954814), (12, 17462345), (15, 13969876), (20, 10477407), (30, 6984938), (60, 3492469), (109, 1922460), (179, 1170660), (218, 961230), (327, 640820), (358, 585330), (436, 480615), (537, 390220), (545, 384492), (654, 320410), (716, 292665), (895, 234132), (1074, 195110), (1090, 192246), (1308, 160205), (1635, 128164), (1790, 117066), (2148, 97555), (2180, 96123), (2685, 78044), (3270, 64082), (3580, 58533), (5370, 39022), (6540, 32041), (10740, 19511)]