18963760

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2347}}^1$

素因数の和:2461

約数の個数: 40

約数和(自身を含む): 44546256

約数和(自身を除く): 25582496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 2347, 4040, 4694, 8080, 9388, 11735, 18776, 23470, 37552, 46940, 93880, 187760, 237047, 474094, 948188, 1185235, 1896376, 2370470, 3792752, 4740940, 9481880, 18963760]

約数ペア:

[(1, 18963760), (2, 9481880), (4, 4740940), (5, 3792752), (8, 2370470), (10, 1896376), (16, 1185235), (20, 948188), (40, 474094), (80, 237047), (101, 187760), (202, 93880), (404, 46940), (505, 37552), (808, 23470), (1010, 18776), (1616, 11735), (2020, 9388), (2347, 8080), (4040, 4694)]