201372280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{647}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 470292480

約数和(自身を除く): 268920200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 251, 310, 502, 620, 647, 1004, 1240, 1255, 1294, 2008, 2510, 2588, 3235, 5020, 5176, 6470, 7781, 10040, 12940, 15562, 20057, 25880, 31124, 38905, 40114, 62248, 77810, 80228, 100285, 155620, 160456, 162397, 200570, 311240, 324794, 401140, 649588, 802280, 811985, 1299176, 1623970, 3247940, 5034307, 6495880, 10068614, 20137228, 25171535, 40274456, 50343070, 100686140, 201372280]

約数ペア:

[(1, 201372280), (2, 100686140), (4, 50343070), (5, 40274456), (8, 25171535), (10, 20137228), (20, 10068614), (31, 6495880), (40, 5034307), (62, 3247940), (124, 1623970), (155, 1299176), (248, 811985), (251, 802280), (310, 649588), (502, 401140), (620, 324794), (647, 311240), (1004, 200570), (1240, 162397), (1255, 160456), (1294, 155620), (2008, 100285), (2510, 80228), (2588, 77810), (3235, 62248), (5020, 40114), (5176, 38905), (6470, 31124), (7781, 25880), (10040, 20057), (12940, 15562)]