219727980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1220711}}^1$

素因数の和:1220726

約数の個数: 36

約数和(自身を含む): 666508752

約数和(自身を除く): 446780772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1220711, 2441422, 3662133, 4882844, 6103555, 7324266, 10986399, 12207110, 14648532, 18310665, 21972798, 24414220, 36621330, 43945596, 54931995, 73242660, 109863990, 219727980]

約数ペア:

[(1, 219727980), (2, 109863990), (3, 73242660), (4, 54931995), (5, 43945596), (6, 36621330), (9, 24414220), (10, 21972798), (12, 18310665), (15, 14648532), (18, 12207110), (20, 10986399), (30, 7324266), (36, 6103555), (45, 4882844), (60, 3662133), (90, 2441422), (180, 1220711)]