1018841680

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{9973}}^1$

素因数の和:11263

約数の個数: 40

約数和(自身を含む): 2370899592

約数和(自身を除く): 1352057912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 2554, 5108, 6385, 9973, 10216, 12770, 19946, 20432, 25540, 39892, 49865, 51080, 79784, 99730, 102160, 159568, 199460, 398920, 797840, 12735521, 25471042, 50942084, 63677605, 101884168, 127355210, 203768336, 254710420, 509420840, 1018841680]

約数ペア:

[(1, 1018841680), (2, 509420840), (4, 254710420), (5, 203768336), (8, 127355210), (10, 101884168), (16, 63677605), (20, 50942084), (40, 25471042), (80, 12735521), (1277, 797840), (2554, 398920), (5108, 199460), (6385, 159568), (9973, 102160), (10216, 99730), (12770, 79784), (19946, 51080), (20432, 49865), (25540, 39892)]