1438520020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{28463}}^1$

素因数の和:28517

約数の個数: 72

約数和(自身を含む): 3643847424

約数和(自身を除く): 2205327404

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 665, 722, 1330, 1444, 1805, 2527, 2660, 3610, 5054, 7220, 10108, 12635, 25270, 28463, 50540, 56926, 113852, 142315, 199241, 284630, 398482, 540797, 569260, 796964, 996205, 1081594, 1992410, 2163188, 2703985, 3785579, 3984820, 5407970, 7571158, 10275143, 10815940, 15142316, 18927895, 20550286, 37855790, 41100572, 51375715, 71926001, 75711580, 102751430, 143852002, 205502860, 287704004, 359630005, 719260010, 1438520020]

約数ペア:

[(1, 1438520020), (2, 719260010), (4, 359630005), (5, 287704004), (7, 205502860), (10, 143852002), (14, 102751430), (19, 75711580), (20, 71926001), (28, 51375715), (35, 41100572), (38, 37855790), (70, 20550286), (76, 18927895), (95, 15142316), (133, 10815940), (140, 10275143), (190, 7571158), (266, 5407970), (361, 3984820), (380, 3785579), (532, 2703985), (665, 2163188), (722, 1992410), (1330, 1081594), (1444, 996205), (1805, 796964), (2527, 569260), (2660, 540797), (3610, 398482), (5054, 284630), (7220, 199241), (10108, 142315), (12635, 113852), (25270, 56926), (28463, 50540)]