81847980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454711}}^1$

素因数の和:454726

約数の個数: 36

約数和(自身を含む): 248272752

約数和(自身を除く): 166424772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454711, 909422, 1364133, 1818844, 2273555, 2728266, 4092399, 4547110, 5456532, 6820665, 8184798, 9094220, 13641330, 16369596, 20461995, 27282660, 40923990, 81847980]

約数ペア:

[(1, 81847980), (2, 40923990), (3, 27282660), (4, 20461995), (5, 16369596), (6, 13641330), (9, 9094220), (10, 8184798), (12, 6820665), (15, 5456532), (18, 4547110), (20, 4092399), (30, 2728266), (36, 2273555), (45, 1818844), (60, 1364133), (90, 909422), (180, 454711)]