128872980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{715961}}^1$

素因数の和:715976

約数の個数: 36

約数和(自身を含む): 390915252

約数和(自身を除く): 262042272

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 715961, 1431922, 2147883, 2863844, 3579805, 4295766, 6443649, 7159610, 8591532, 10739415, 12887298, 14319220, 21478830, 25774596, 32218245, 42957660, 64436490, 128872980]

約数ペア:

[(1, 128872980), (2, 64436490), (3, 42957660), (4, 32218245), (5, 25774596), (6, 21478830), (9, 14319220), (10, 12887298), (12, 10739415), (15, 8591532), (18, 7159610), (20, 6443649), (30, 4295766), (36, 3579805), (45, 2863844), (60, 2147883), (90, 1431922), (180, 715961)]