278325832

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 563112000

約数和(自身を除く): 284786168

約数列:

[1, 2, 4, 8, 19, 38, 76, 107, 109, 152, 157, 214, 218, 314, 428, 436, 628, 856, 872, 1256, 2033, 2071, 2983, 4066, 4142, 5966, 8132, 8284, 11663, 11932, 16264, 16568, 16799, 17113, 23326, 23864, 33598, 34226, 46652, 67196, 68452, 93304, 134392, 136904, 221597, 319181, 325147, 443194, 638362, 650294, 886388, 1276724, 1300588, 1772776, 1831091, 2553448, 2601176, 3662182, 7324364, 14648728, 34790729, 69581458, 139162916, 278325832]

約数ペア:

[(1, 278325832), (2, 139162916), (4, 69581458), (8, 34790729), (19, 14648728), (38, 7324364), (76, 3662182), (107, 2601176), (109, 2553448), (152, 1831091), (157, 1772776), (214, 1300588), (218, 1276724), (314, 886388), (428, 650294), (436, 638362), (628, 443194), (856, 325147), (872, 319181), (1256, 221597), (2033, 136904), (2071, 134392), (2983, 93304), (4066, 68452), (4142, 67196), (5966, 46652), (8132, 34226), (8284, 33598), (11663, 23864), (11932, 23326), (16264, 17113), (16568, 16799)]