78608870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{4157}}^1$

素因数の和:4256

約数の個数: 32

約数和(自身を含む): 148490496

約数和(自身を除く): 69881626

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1891, 3782, 4157, 8314, 9455, 18910, 20785, 41570, 128867, 253577, 257734, 507154, 644335, 1267885, 1288670, 2535770, 7860887, 15721774, 39304435, 78608870]

約数ペア:

[(1, 78608870), (2, 39304435), (5, 15721774), (10, 7860887), (31, 2535770), (61, 1288670), (62, 1267885), (122, 644335), (155, 507154), (305, 257734), (310, 253577), (610, 128867), (1891, 41570), (3782, 20785), (4157, 18910), (8314, 9455)]