1890420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{643}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 6166944

約数和(自身を除く): 4276524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 643, 735, 980, 1286, 1470, 1929, 2572, 2940, 3215, 3858, 4501, 6430, 7716, 9002, 9645, 12860, 13503, 18004, 19290, 22505, 27006, 31507, 38580, 45010, 54012, 63014, 67515, 90020, 94521, 126028, 135030, 157535, 189042, 270060, 315070, 378084, 472605, 630140, 945210, 1890420]

約数ペア:

[(1, 1890420), (2, 945210), (3, 630140), (4, 472605), (5, 378084), (6, 315070), (7, 270060), (10, 189042), (12, 157535), (14, 135030), (15, 126028), (20, 94521), (21, 90020), (28, 67515), (30, 63014), (35, 54012), (42, 45010), (49, 38580), (60, 31507), (70, 27006), (84, 22505), (98, 19290), (105, 18004), (140, 13503), (147, 12860), (196, 9645), (210, 9002), (245, 7716), (294, 6430), (420, 4501), (490, 3858), (588, 3215), (643, 2940), (735, 2572), (980, 1929), (1286, 1470)]