25421408

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 51819264

約数和(自身を除く): 26397856

約数列:

[1, 2, 4, 8, 16, 32, 67, 71, 134, 142, 167, 268, 284, 334, 536, 568, 668, 1072, 1136, 1336, 2144, 2272, 2672, 4757, 5344, 9514, 11189, 11857, 19028, 22378, 23714, 38056, 44756, 47428, 76112, 89512, 94856, 152224, 179024, 189712, 358048, 379424, 794419, 1588838, 3177676, 6355352, 12710704, 25421408]

約数ペア:

[(1, 25421408), (2, 12710704), (4, 6355352), (8, 3177676), (16, 1588838), (32, 794419), (67, 379424), (71, 358048), (134, 189712), (142, 179024), (167, 152224), (268, 94856), (284, 89512), (334, 76112), (536, 47428), (568, 44756), (668, 38056), (1072, 23714), (1136, 22378), (1336, 19028), (2144, 11857), (2272, 11189), (2672, 9514), (4757, 5344)]