25787216

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 62496000

約数和(自身を除く): 36708784

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 89, 91, 104, 112, 178, 182, 199, 208, 356, 364, 398, 623, 712, 728, 796, 1157, 1246, 1393, 1424, 1456, 1592, 2314, 2492, 2587, 2786, 3184, 4628, 4984, 5174, 5572, 8099, 9256, 9968, 10348, 11144, 16198, 17711, 18109, 18512, 20696, 22288, 32396, 35422, 36218, 41392, 64792, 70844, 72436, 123977, 129584, 141688, 144872, 230243, 247954, 283376, 289744, 460486, 495908, 920972, 991816, 1611701, 1841944, 1983632, 3223402, 3683888, 6446804, 12893608, 25787216]

約数ペア:

[(1, 25787216), (2, 12893608), (4, 6446804), (7, 3683888), (8, 3223402), (13, 1983632), (14, 1841944), (16, 1611701), (26, 991816), (28, 920972), (52, 495908), (56, 460486), (89, 289744), (91, 283376), (104, 247954), (112, 230243), (178, 144872), (182, 141688), (199, 129584), (208, 123977), (356, 72436), (364, 70844), (398, 64792), (623, 41392), (712, 36218), (728, 35422), (796, 32396), (1157, 22288), (1246, 20696), (1393, 18512), (1424, 18109), (1456, 17711), (1592, 16198), (2314, 11144), (2492, 10348), (2587, 9968), (2786, 9256), (3184, 8099), (4628, 5572), (4984, 5174)]