31331456

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1037

約数の個数: 64

約数和(自身を含む): 70828800

約数和(自身を除く): 39497344

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 832, 988, 991, 1216, 1664, 1976, 1982, 2432, 3952, 3964, 7904, 7928, 12883, 15808, 15856, 18829, 25766, 31616, 31712, 37658, 51532, 63424, 75316, 103064, 126848, 150632, 206128, 244777, 301264, 412256, 489554, 602528, 824512, 979108, 1205056, 1649024, 1958216, 2410112, 3916432, 7832864, 15665728, 31331456]

約数ペア:

[(1, 31331456), (2, 15665728), (4, 7832864), (8, 3916432), (13, 2410112), (16, 1958216), (19, 1649024), (26, 1205056), (32, 979108), (38, 824512), (52, 602528), (64, 489554), (76, 412256), (104, 301264), (128, 244777), (152, 206128), (208, 150632), (247, 126848), (304, 103064), (416, 75316), (494, 63424), (608, 51532), (832, 37658), (988, 31712), (991, 31616), (1216, 25766), (1664, 18829), (1976, 15856), (1982, 15808), (2432, 12883), (3952, 7928), (3964, 7904)]