19197680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7741}}^1$

素因数の和:7785

約数の個数: 40

約数和(自身を含む): 46080384

約数和(自身を除く): 26882704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7741, 15482, 30964, 38705, 61928, 77410, 123856, 154820, 239971, 309640, 479942, 619280, 959884, 1199855, 1919768, 2399710, 3839536, 4799420, 9598840, 19197680]

約数ペア:

[(1, 19197680), (2, 9598840), (4, 4799420), (5, 3839536), (8, 2399710), (10, 1919768), (16, 1199855), (20, 959884), (31, 619280), (40, 479942), (62, 309640), (80, 239971), (124, 154820), (155, 123856), (248, 77410), (310, 61928), (496, 38705), (620, 30964), (1240, 15482), (2480, 7741)]