12957660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71987}}^1$

素因数の和:72002

約数の個数: 36

約数和(自身を含む): 39305448

約数和(自身を除く): 26347788

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 71987, 143974, 215961, 287948, 359935, 431922, 647883, 719870, 863844, 1079805, 1295766, 1439740, 2159610, 2591532, 3239415, 4319220, 6478830, 12957660]

約数ペア:

[(1, 12957660), (2, 6478830), (3, 4319220), (4, 3239415), (5, 2591532), (6, 2159610), (9, 1439740), (10, 1295766), (12, 1079805), (15, 863844), (18, 719870), (20, 647883), (30, 431922), (36, 359935), (45, 287948), (60, 215961), (90, 143974), (180, 71987)]