18859370

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{719}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 16495510

約数列:

[1, 2, 5, 10, 43, 61, 86, 122, 215, 305, 430, 610, 719, 1438, 2623, 3595, 5246, 7190, 13115, 26230, 30917, 43859, 61834, 87718, 154585, 219295, 309170, 438590, 1885937, 3771874, 9429685, 18859370]

約数ペア:

[(1, 18859370), (2, 9429685), (5, 3771874), (10, 1885937), (43, 438590), (61, 309170), (86, 219295), (122, 154585), (215, 87718), (305, 61834), (430, 43859), (610, 30917), (719, 26230), (1438, 13115), (2623, 7190), (3595, 5246)]