20404076

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2190

約数の個数: 48

約数和(自身を含む): 45975552

約数和(自身を除く): 25571476

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2137, 2387, 4274, 4774, 8548, 9548, 14959, 23507, 29918, 47014, 59836, 66247, 94028, 132494, 164549, 264988, 329098, 463729, 658196, 728717, 927458, 1457434, 1854916, 2914868, 5101019, 10202038, 20404076]

約数ペア:

[(1, 20404076), (2, 10202038), (4, 5101019), (7, 2914868), (11, 1854916), (14, 1457434), (22, 927458), (28, 728717), (31, 658196), (44, 463729), (62, 329098), (77, 264988), (124, 164549), (154, 132494), (217, 94028), (308, 66247), (341, 59836), (434, 47014), (682, 29918), (868, 23507), (1364, 14959), (2137, 9548), (2387, 8548), (4274, 4774)]