217713020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81847}}^1$

素因数の和:81882

約数の個数: 48

約数和(自身を含む): 550018560

約数和(自身を除く): 332305540

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 81847, 163694, 327388, 409235, 572929, 818470, 1145858, 1555093, 1636940, 2291716, 2864645, 3110186, 5729290, 6220372, 7775465, 10885651, 11458580, 15550930, 21771302, 31101860, 43542604, 54428255, 108856510, 217713020]

約数ペア:

[(1, 217713020), (2, 108856510), (4, 54428255), (5, 43542604), (7, 31101860), (10, 21771302), (14, 15550930), (19, 11458580), (20, 10885651), (28, 7775465), (35, 6220372), (38, 5729290), (70, 3110186), (76, 2864645), (95, 2291716), (133, 1636940), (140, 1555093), (190, 1145858), (266, 818470), (380, 572929), (532, 409235), (665, 327388), (1330, 163694), (2660, 81847)]