81675040

素因数分解:

$2^5\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1117}}^1$

素因数の和:1589

約数の個数: 48

約数和(自身を含む): 193552632

約数和(自身を除く): 111877592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 457, 914, 1117, 1828, 2234, 2285, 3656, 4468, 4570, 5585, 7312, 8936, 9140, 11170, 14624, 17872, 18280, 22340, 35744, 36560, 44680, 73120, 89360, 178720, 510469, 1020938, 2041876, 2552345, 4083752, 5104690, 8167504, 10209380, 16335008, 20418760, 40837520, 81675040]

約数ペア:

[(1, 81675040), (2, 40837520), (4, 20418760), (5, 16335008), (8, 10209380), (10, 8167504), (16, 5104690), (20, 4083752), (32, 2552345), (40, 2041876), (80, 1020938), (160, 510469), (457, 178720), (914, 89360), (1117, 73120), (1828, 44680), (2234, 36560), (2285, 35744), (3656, 22340), (4468, 18280), (4570, 17872), (5585, 14624), (7312, 11170), (8936, 9140)]