31002020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{967}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 74807040

約数和(自身を除く): 43805020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 916, 967, 1145, 1603, 1934, 2290, 3206, 3868, 4580, 4835, 6412, 6769, 8015, 9670, 13538, 16030, 19340, 27076, 32060, 33845, 67690, 135380, 221443, 442886, 885772, 1107215, 1550101, 2214430, 3100202, 4428860, 6200404, 7750505, 15501010, 31002020]

約数ペア:

[(1, 31002020), (2, 15501010), (4, 7750505), (5, 6200404), (7, 4428860), (10, 3100202), (14, 2214430), (20, 1550101), (28, 1107215), (35, 885772), (70, 442886), (140, 221443), (229, 135380), (458, 67690), (916, 33845), (967, 32060), (1145, 27076), (1603, 19340), (1934, 16030), (2290, 13538), (3206, 9670), (3868, 8015), (4580, 6769), (4835, 6412)]