68663560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{977}}^1$

素因数の和:1246

約数の個数: 64

約数和(自身を含む): 177448320

約数和(自身を除く): 108784760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 977, 1004, 1255, 1757, 1954, 2008, 2510, 3514, 3908, 4885, 5020, 6839, 7028, 7816, 8785, 9770, 10040, 13678, 14056, 17570, 19540, 27356, 34195, 35140, 39080, 54712, 68390, 70280, 136780, 245227, 273560, 490454, 980908, 1226135, 1716589, 1961816, 2452270, 3433178, 4904540, 6866356, 8582945, 9809080, 13732712, 17165890, 34331780, 68663560]

約数ペア:

[(1, 68663560), (2, 34331780), (4, 17165890), (5, 13732712), (7, 9809080), (8, 8582945), (10, 6866356), (14, 4904540), (20, 3433178), (28, 2452270), (35, 1961816), (40, 1716589), (56, 1226135), (70, 980908), (140, 490454), (251, 273560), (280, 245227), (502, 136780), (977, 70280), (1004, 68390), (1255, 54712), (1757, 39080), (1954, 35140), (2008, 34195), (2510, 27356), (3514, 19540), (3908, 17570), (4885, 14056), (5020, 13678), (6839, 10040), (7028, 9770), (7816, 8785)]