20500367080

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1\times {\mathrm{8389}}^1$

素因数の和:8906

約数の個数: 64

約数和(自身を含む): 46514160000

約数和(自身を除く): 26013792920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 307, 398, 614, 796, 995, 1228, 1535, 1592, 1990, 2456, 3070, 3980, 6140, 7960, 8389, 12280, 16778, 33556, 41945, 61093, 67112, 83890, 122186, 167780, 244372, 305465, 335560, 488744, 610930, 1221860, 1669411, 2443720, 2575423, 3338822, 5150846, 6677644, 8347055, 10301692, 12877115, 13355288, 16694110, 20603384, 25754230, 33388220, 51508460, 66776440, 103016920, 512509177, 1025018354, 2050036708, 2562545885, 4100073416, 5125091770, 10250183540, 20500367080]

約数ペア:

[(1, 20500367080), (2, 10250183540), (4, 5125091770), (5, 4100073416), (8, 2562545885), (10, 2050036708), (20, 1025018354), (40, 512509177), (199, 103016920), (307, 66776440), (398, 51508460), (614, 33388220), (796, 25754230), (995, 20603384), (1228, 16694110), (1535, 13355288), (1592, 12877115), (1990, 10301692), (2456, 8347055), (3070, 6677644), (3980, 5150846), (6140, 3338822), (7960, 2575423), (8389, 2443720), (12280, 1669411), (16778, 1221860), (33556, 610930), (41945, 488744), (61093, 335560), (67112, 305465), (83890, 244372), (122186, 167780)]