19372840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4993}}^1$

素因数の和:5101

約数の個数: 32

約数和(自身を含む): 44047080

約数和(自身を除く): 24674240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4993, 9986, 19972, 24965, 39944, 49930, 99860, 199720, 484321, 968642, 1937284, 2421605, 3874568, 4843210, 9686420, 19372840]

約数ペア:

[(1, 19372840), (2, 9686420), (4, 4843210), (5, 3874568), (8, 2421605), (10, 1937284), (20, 968642), (40, 484321), (97, 199720), (194, 99860), (388, 49930), (485, 39944), (776, 24965), (970, 19972), (1940, 9986), (3880, 4993)]