285147520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{63649}}^1$

素因数の和:63675

約数の個数: 64

約数和(自身を含む): 779076000

約数和(自身を除く): 493928480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 63649, 127298, 254596, 318245, 445543, 509192, 636490, 891086, 1018384, 1272980, 1782172, 2036768, 2227715, 2545960, 3564344, 4073536, 4455430, 5091920, 7128688, 8147072, 8910860, 10183840, 14257376, 17821720, 20367680, 28514752, 35643440, 40735360, 57029504, 71286880, 142573760, 285147520]

約数ペア:

[(1, 285147520), (2, 142573760), (4, 71286880), (5, 57029504), (7, 40735360), (8, 35643440), (10, 28514752), (14, 20367680), (16, 17821720), (20, 14257376), (28, 10183840), (32, 8910860), (35, 8147072), (40, 7128688), (56, 5091920), (64, 4455430), (70, 4073536), (80, 3564344), (112, 2545960), (128, 2227715), (140, 2036768), (160, 1782172), (224, 1272980), (280, 1018384), (320, 891086), (448, 636490), (560, 509192), (640, 445543), (896, 318245), (1120, 254596), (2240, 127298), (4480, 63649)]