428102140

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{30977}}^1$

素因数の和:31677

約数の個数: 24

約数和(自身を含む): 900344592

約数和(自身を除く): 472242452

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6910, 13820, 30977, 61954, 123908, 154885, 309770, 619540, 21405107, 42810214, 85620428, 107025535, 214051070, 428102140]

約数ペア:

[(1, 428102140), (2, 214051070), (4, 107025535), (5, 85620428), (10, 42810214), (20, 21405107), (691, 619540), (1382, 309770), (2764, 154885), (3455, 123908), (6910, 61954), (13820, 30977)]