71807940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{398933}}^1$

素因数の和:398948

約数の個数: 36

約数和(自身を含む): 217817964

約数和(自身を除く): 146010024

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 398933, 797866, 1196799, 1595732, 1994665, 2393598, 3590397, 3989330, 4787196, 5983995, 7180794, 7978660, 11967990, 14361588, 17951985, 23935980, 35903970, 71807940]

約数ペア:

[(1, 71807940), (2, 35903970), (3, 23935980), (4, 17951985), (5, 14361588), (6, 11967990), (9, 7978660), (10, 7180794), (12, 5983995), (15, 4787196), (18, 3989330), (20, 3590397), (30, 2393598), (36, 1994665), (45, 1595732), (60, 1196799), (90, 797866), (180, 398933)]