1685250804920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1\times {\mathrm{689851}}^1$

素因数の和:690408

約数の個数: 64

約数和(自身を含む): 3825781221600

約数和(自身を除く): 2140530416680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 389, 628, 778, 785, 1256, 1556, 1570, 1945, 3112, 3140, 3890, 6280, 7780, 15560, 61073, 122146, 244292, 305365, 488584, 610730, 689851, 1221460, 1379702, 2442920, 2759404, 3449255, 5518808, 6898510, 13797020, 27594040, 108306607, 216613214, 268352039, 433226428, 536704078, 541533035, 866452856, 1073408156, 1083066070, 1341760195, 2146816312, 2166132140, 2683520390, 4332264280, 5367040780, 10734081560, 42131270123, 84262540246, 168525080492, 210656350615, 337050160984, 421312701230, 842625402460, 1685250804920]

約数ペア:

[(1, 1685250804920), (2, 842625402460), (4, 421312701230), (5, 337050160984), (8, 210656350615), (10, 168525080492), (20, 84262540246), (40, 42131270123), (157, 10734081560), (314, 5367040780), (389, 4332264280), (628, 2683520390), (778, 2166132140), (785, 2146816312), (1256, 1341760195), (1556, 1083066070), (1570, 1073408156), (1945, 866452856), (3112, 541533035), (3140, 536704078), (3890, 433226428), (6280, 268352039), (7780, 216613214), (15560, 108306607), (61073, 27594040), (122146, 13797020), (244292, 6898510), (305365, 5518808), (488584, 3449255), (610730, 2759404), (689851, 2442920), (1221460, 1379702)]