123997972

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 253902208

約数和(自身を除く): 129904236

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 157, 268, 314, 421, 469, 628, 842, 938, 1099, 1684, 1876, 2198, 2947, 4396, 5894, 10519, 11788, 21038, 28207, 42076, 56414, 66097, 73633, 112828, 132194, 147266, 197449, 264388, 294532, 394898, 462679, 789796, 925358, 1850716, 4428499, 8856998, 17713996, 30999493, 61998986, 123997972]

約数ペア:

[(1, 123997972), (2, 61998986), (4, 30999493), (7, 17713996), (14, 8856998), (28, 4428499), (67, 1850716), (134, 925358), (157, 789796), (268, 462679), (314, 394898), (421, 294532), (469, 264388), (628, 197449), (842, 147266), (938, 132194), (1099, 112828), (1684, 73633), (1876, 66097), (2198, 56414), (2947, 42076), (4396, 28207), (5894, 21038), (10519, 11788)]