20783910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5209}}^1$

素因数の和:5245

約数の個数: 64

約数和(自身を含む): 60019200

約数和(自身を除く): 39235290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 5209, 10418, 15627, 26045, 31254, 36463, 52090, 72926, 78135, 98971, 109389, 156270, 182315, 197942, 218778, 296913, 364630, 494855, 546945, 593826, 692797, 989710, 1093890, 1385594, 1484565, 2078391, 2969130, 3463985, 4156782, 6927970, 10391955, 20783910]

約数ペア:

[(1, 20783910), (2, 10391955), (3, 6927970), (5, 4156782), (6, 3463985), (7, 2969130), (10, 2078391), (14, 1484565), (15, 1385594), (19, 1093890), (21, 989710), (30, 692797), (35, 593826), (38, 546945), (42, 494855), (57, 364630), (70, 296913), (95, 218778), (105, 197942), (114, 182315), (133, 156270), (190, 109389), (210, 98971), (266, 78135), (285, 72926), (399, 52090), (570, 36463), (665, 31254), (798, 26045), (1330, 15627), (1995, 10418), (3990, 5209)]