9712980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17987}}^1$

素因数の和:18005

約数の個数: 48

約数和(自身を含む): 30219840

約数和(自身を除く): 20506860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 17987, 35974, 53961, 71948, 89935, 107922, 161883, 179870, 215844, 269805, 323766, 359740, 485649, 539610, 647532, 809415, 971298, 1079220, 1618830, 1942596, 2428245, 3237660, 4856490, 9712980]

約数ペア:

[(1, 9712980), (2, 4856490), (3, 3237660), (4, 2428245), (5, 1942596), (6, 1618830), (9, 1079220), (10, 971298), (12, 809415), (15, 647532), (18, 539610), (20, 485649), (27, 359740), (30, 323766), (36, 269805), (45, 215844), (54, 179870), (60, 161883), (90, 107922), (108, 89935), (135, 71948), (180, 53961), (270, 35974), (540, 17987)]