28415020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23291}}^1$

素因数の和:23361

約数の個数: 24

約数和(自身を含む): 60652368

約数和(自身を除く): 32237348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 23291, 46582, 93164, 116455, 232910, 465820, 1420751, 2841502, 5683004, 7103755, 14207510, 28415020]

約数ペア:

[(1, 28415020), (2, 14207510), (4, 7103755), (5, 5683004), (10, 2841502), (20, 1420751), (61, 465820), (122, 232910), (244, 116455), (305, 93164), (610, 46582), (1220, 23291)]