1639201415

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{509}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 2068070400

約数和(自身を除く): 428868985

約数列:

[1, 5, 31, 79, 155, 263, 395, 509, 1315, 2449, 2545, 8153, 12245, 15779, 20777, 40211, 40765, 78895, 103885, 133867, 201055, 644087, 669335, 1246541, 3220435, 4149877, 6232705, 10575493, 20749385, 52877465, 327840283, 1639201415]

約数ペア:

[(1, 1639201415), (5, 327840283), (31, 52877465), (79, 20749385), (155, 10575493), (263, 6232705), (395, 4149877), (509, 3220435), (1315, 1246541), (2449, 669335), (2545, 644087), (8153, 201055), (12245, 133867), (15779, 103885), (20777, 78895), (40211, 40765)]