12638960

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6869}}^1$

素因数の和:6905

約数の個数: 40

約数和(自身を含む): 30667680

約数和(自身を除く): 18028720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 6869, 13738, 27476, 34345, 54952, 68690, 109904, 137380, 157987, 274760, 315974, 549520, 631948, 789935, 1263896, 1579870, 2527792, 3159740, 6319480, 12638960]

約数ペア:

[(1, 12638960), (2, 6319480), (4, 3159740), (5, 2527792), (8, 1579870), (10, 1263896), (16, 789935), (20, 631948), (23, 549520), (40, 315974), (46, 274760), (80, 157987), (92, 137380), (115, 109904), (184, 68690), (230, 54952), (368, 34345), (460, 27476), (920, 13738), (1840, 6869)]