71752720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68993}}^1$

素因数の和:69019

約数の個数: 40

約数和(自身を含む): 179660376

約数和(自身を除く): 107907656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68993, 137986, 275972, 344965, 551944, 689930, 896909, 1103888, 1379860, 1793818, 2759720, 3587636, 4484545, 5519440, 7175272, 8969090, 14350544, 17938180, 35876360, 71752720]

約数ペア:

[(1, 71752720), (2, 35876360), (4, 17938180), (5, 14350544), (8, 8969090), (10, 7175272), (13, 5519440), (16, 4484545), (20, 3587636), (26, 2759720), (40, 1793818), (52, 1379860), (65, 1103888), (80, 896909), (104, 689930), (130, 551944), (208, 344965), (260, 275972), (520, 137986), (1040, 68993)]