20051215204

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{499}}^1\times {\mathrm{1951}}^1$

素因数の和:2744

約数の個数: 48

約数和(自身を含む): 37166080000

約数和(自身を除く): 17114864796

約数列:

[1, 2, 4, 19, 38, 76, 271, 499, 542, 998, 1084, 1951, 1996, 3902, 5149, 7804, 9481, 10298, 18962, 20596, 37069, 37924, 74138, 135229, 148276, 270458, 528721, 540916, 973549, 1057442, 1947098, 2114884, 2569351, 3894196, 5138702, 10045699, 10277404, 18497431, 20091398, 36994862, 40182796, 73989724, 263831779, 527663558, 1055327116, 5012803801, 10025607602, 20051215204]

約数ペア:

[(1, 20051215204), (2, 10025607602), (4, 5012803801), (19, 1055327116), (38, 527663558), (76, 263831779), (271, 73989724), (499, 40182796), (542, 36994862), (998, 20091398), (1084, 18497431), (1951, 10277404), (1996, 10045699), (3902, 5138702), (5149, 3894196), (7804, 2569351), (9481, 2114884), (10298, 1947098), (18962, 1057442), (20596, 973549), (37069, 540916), (37924, 528721), (74138, 270458), (135229, 148276)]