20156916

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 51035264

約数和(自身を除く): 30878348

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 157, 314, 471, 628, 823, 942, 1646, 1884, 2041, 2469, 3292, 4082, 4938, 6123, 8164, 9876, 10699, 12246, 21398, 24492, 32097, 42796, 64194, 128388, 129211, 258422, 387633, 516844, 775266, 1550532, 1679743, 3359486, 5039229, 6718972, 10078458, 20156916]

約数ペア:

[(1, 20156916), (2, 10078458), (3, 6718972), (4, 5039229), (6, 3359486), (12, 1679743), (13, 1550532), (26, 775266), (39, 516844), (52, 387633), (78, 258422), (156, 129211), (157, 128388), (314, 64194), (471, 42796), (628, 32097), (823, 24492), (942, 21398), (1646, 12246), (1884, 10699), (2041, 9876), (2469, 8164), (3292, 6123), (4082, 4938)]