19721280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{20543}}^1$

素因数の和:20563

約数の個数: 56

約数和(自身を含む): 62618112

約数和(自身を除く): 42896832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 20543, 41086, 61629, 82172, 102715, 123258, 164344, 205430, 246516, 308145, 328688, 410860, 493032, 616290, 657376, 821720, 986064, 1232580, 1314752, 1643440, 1972128, 2465160, 3286880, 3944256, 4930320, 6573760, 9860640, 19721280]

約数ペア:

[(1, 19721280), (2, 9860640), (3, 6573760), (4, 4930320), (5, 3944256), (6, 3286880), (8, 2465160), (10, 1972128), (12, 1643440), (15, 1314752), (16, 1232580), (20, 986064), (24, 821720), (30, 657376), (32, 616290), (40, 493032), (48, 410860), (60, 328688), (64, 308145), (80, 246516), (96, 205430), (120, 164344), (160, 123258), (192, 102715), (240, 82172), (320, 61629), (480, 41086), (960, 20543)]