28781120

素因数分解:

$2^6\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1697}}^1$

素因数の和:1767

約数の個数: 56

約数和(自身を含む): 69869304

約数和(自身を除く): 41088184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 160, 212, 265, 320, 424, 530, 848, 1060, 1696, 1697, 2120, 3392, 3394, 4240, 6788, 8480, 8485, 13576, 16960, 16970, 27152, 33940, 54304, 67880, 89941, 108608, 135760, 179882, 271520, 359764, 449705, 543040, 719528, 899410, 1439056, 1798820, 2878112, 3597640, 5756224, 7195280, 14390560, 28781120]

約数ペア:

[(1, 28781120), (2, 14390560), (4, 7195280), (5, 5756224), (8, 3597640), (10, 2878112), (16, 1798820), (20, 1439056), (32, 899410), (40, 719528), (53, 543040), (64, 449705), (80, 359764), (106, 271520), (160, 179882), (212, 135760), (265, 108608), (320, 89941), (424, 67880), (530, 54304), (848, 33940), (1060, 27152), (1696, 16970), (1697, 16960), (2120, 13576), (3392, 8485), (3394, 8480), (4240, 6788)]