212249560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{171169}}^1$

素因数の和:171211

約数の個数: 32

約数和(自身を含む): 492969600

約数和(自身を除く): 280720040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 171169, 342338, 684676, 855845, 1369352, 1711690, 3423380, 5306239, 6846760, 10612478, 21224956, 26531195, 42449912, 53062390, 106124780, 212249560]

約数ペア:

[(1, 212249560), (2, 106124780), (4, 53062390), (5, 42449912), (8, 26531195), (10, 21224956), (20, 10612478), (31, 6846760), (40, 5306239), (62, 3423380), (124, 1711690), (155, 1369352), (248, 855845), (310, 684676), (620, 342338), (1240, 171169)]