25456808

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 54460800

約数和(自身を除く): 29003992

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 494, 676, 988, 991, 1352, 1976, 1982, 3211, 3964, 6422, 7928, 12844, 12883, 18829, 25688, 25766, 37658, 51532, 75316, 103064, 150632, 167479, 244777, 334958, 489554, 669916, 979108, 1339832, 1958216, 3182101, 6364202, 12728404, 25456808]

約数ペア:

[(1, 25456808), (2, 12728404), (4, 6364202), (8, 3182101), (13, 1958216), (19, 1339832), (26, 979108), (38, 669916), (52, 489554), (76, 334958), (104, 244777), (152, 167479), (169, 150632), (247, 103064), (338, 75316), (494, 51532), (676, 37658), (988, 25766), (991, 25688), (1352, 18829), (1976, 12883), (1982, 12844), (3211, 7928), (3964, 6422)]