18716425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 30136960

約数和(自身を除く): 11420535

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 133, 175, 247, 325, 433, 455, 475, 665, 1235, 1729, 2165, 2275, 3031, 3325, 5629, 6175, 8227, 8645, 10825, 15155, 28145, 39403, 41135, 43225, 57589, 75775, 106951, 140725, 197015, 205675, 287945, 534755, 748657, 985075, 1439725, 2673775, 3743285, 18716425]

約数ペア:

[(1, 18716425), (5, 3743285), (7, 2673775), (13, 1439725), (19, 985075), (25, 748657), (35, 534755), (65, 287945), (91, 205675), (95, 197015), (133, 140725), (175, 106951), (247, 75775), (325, 57589), (433, 43225), (455, 41135), (475, 39403), (665, 28145), (1235, 15155), (1729, 10825), (2165, 8645), (2275, 8227), (3031, 6175), (3325, 5629)]