18415456

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 19904672

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 131, 184, 191, 262, 368, 382, 524, 736, 764, 1048, 1528, 2096, 3013, 3056, 4192, 4393, 6026, 6112, 8786, 12052, 17572, 24104, 25021, 35144, 48208, 50042, 70288, 96416, 100084, 140576, 200168, 400336, 575483, 800672, 1150966, 2301932, 4603864, 9207728, 18415456]

約数ペア:

[(1, 18415456), (2, 9207728), (4, 4603864), (8, 2301932), (16, 1150966), (23, 800672), (32, 575483), (46, 400336), (92, 200168), (131, 140576), (184, 100084), (191, 96416), (262, 70288), (368, 50042), (382, 48208), (524, 35144), (736, 25021), (764, 24104), (1048, 17572), (1528, 12052), (2096, 8786), (3013, 6112), (3056, 6026), (4192, 4393)]