25212848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:645

約数の個数: 40

約数和(自身を含む): 51804720

約数和(自身を除く): 26591872

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 394, 421, 788, 842, 1576, 1684, 3152, 3368, 3743, 6736, 7486, 7999, 14972, 15998, 29944, 31996, 59888, 63992, 82937, 127984, 165874, 331748, 663496, 1326992, 1575803, 3151606, 6303212, 12606424, 25212848]

約数ペア:

[(1, 25212848), (2, 12606424), (4, 6303212), (8, 3151606), (16, 1575803), (19, 1326992), (38, 663496), (76, 331748), (152, 165874), (197, 127984), (304, 82937), (394, 63992), (421, 59888), (788, 31996), (842, 29944), (1576, 15998), (1684, 14972), (3152, 7999), (3368, 7486), (3743, 6736)]