209401360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2089}}^1$

素因数の和:2288

約数の個数: 80

約数和(自身を含む): 559785600

約数和(自身を除く): 350384240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 179, 280, 358, 560, 716, 895, 1253, 1432, 1790, 2089, 2506, 2864, 3580, 4178, 5012, 6265, 7160, 8356, 10024, 10445, 12530, 14320, 14623, 16712, 20048, 20890, 25060, 29246, 33424, 41780, 50120, 58492, 73115, 83560, 100240, 116984, 146230, 167120, 233968, 292460, 373931, 584920, 747862, 1169840, 1495724, 1869655, 2617517, 2991448, 3739310, 5235034, 5982896, 7478620, 10470068, 13087585, 14957240, 20940136, 26175170, 29914480, 41880272, 52350340, 104700680, 209401360]

約数ペア:

[(1, 209401360), (2, 104700680), (4, 52350340), (5, 41880272), (7, 29914480), (8, 26175170), (10, 20940136), (14, 14957240), (16, 13087585), (20, 10470068), (28, 7478620), (35, 5982896), (40, 5235034), (56, 3739310), (70, 2991448), (80, 2617517), (112, 1869655), (140, 1495724), (179, 1169840), (280, 747862), (358, 584920), (560, 373931), (716, 292460), (895, 233968), (1253, 167120), (1432, 146230), (1790, 116984), (2089, 100240), (2506, 83560), (2864, 73115), (3580, 58492), (4178, 50120), (5012, 41780), (6265, 33424), (7160, 29246), (8356, 25060), (10024, 20890), (10445, 20048), (12530, 16712), (14320, 14623)]