18920432

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:345

約数の個数: 40

約数和(自身を含む): 37768416

約数和(自身を除く): 18847984

約数列:

[1, 2, 4, 8, 16, 73, 97, 146, 167, 194, 292, 334, 388, 584, 668, 776, 1168, 1336, 1552, 2672, 7081, 12191, 14162, 16199, 24382, 28324, 32398, 48764, 56648, 64796, 97528, 113296, 129592, 195056, 259184, 1182527, 2365054, 4730108, 9460216, 18920432]

約数ペア:

[(1, 18920432), (2, 9460216), (4, 4730108), (8, 2365054), (16, 1182527), (73, 259184), (97, 195056), (146, 129592), (167, 113296), (194, 97528), (292, 64796), (334, 56648), (388, 48764), (584, 32398), (668, 28324), (776, 24382), (1168, 16199), (1336, 14162), (1552, 12191), (2672, 7081)]