1111038880

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{991999}}^1$

素因数の和:992021

約数の個数: 48

約数和(自身を含む): 2999808000

約数和(自身を除く): 1888769120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 991999, 1983998, 3967996, 4959995, 6943993, 7935992, 9919990, 13887986, 15871984, 19839980, 27775972, 31743968, 34719965, 39679960, 55551944, 69439930, 79359920, 111103888, 138879860, 158719840, 222207776, 277759720, 555519440, 1111038880]

約数ペア:

[(1, 1111038880), (2, 555519440), (4, 277759720), (5, 222207776), (7, 158719840), (8, 138879860), (10, 111103888), (14, 79359920), (16, 69439930), (20, 55551944), (28, 39679960), (32, 34719965), (35, 31743968), (40, 27775972), (56, 19839980), (70, 15871984), (80, 13887986), (112, 9919990), (140, 7935992), (160, 6943993), (224, 4959995), (280, 3967996), (560, 1983998), (1120, 991999)]