188897480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{77417}}^1$

素因数の和:77489

約数の個数: 32

約数和(自身を含む): 431992440

約数和(自身を除く): 243094960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 77417, 154834, 309668, 387085, 619336, 774170, 1548340, 3096680, 4722437, 9444874, 18889748, 23612185, 37779496, 47224370, 94448740, 188897480]

約数ペア:

[(1, 188897480), (2, 94448740), (4, 47224370), (5, 37779496), (8, 23612185), (10, 18889748), (20, 9444874), (40, 4722437), (61, 3096680), (122, 1548340), (244, 774170), (305, 619336), (488, 387085), (610, 309668), (1220, 154834), (2440, 77417)]