31081720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{40897}}^1$

素因数の和:40927

約数の個数: 32

約数和(自身を含む): 73616400

約数和(自身を除く): 42534680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 40897, 81794, 163588, 204485, 327176, 408970, 777043, 817940, 1554086, 1635880, 3108172, 3885215, 6216344, 7770430, 15540860, 31081720]

約数ペア:

[(1, 31081720), (2, 15540860), (4, 7770430), (5, 6216344), (8, 3885215), (10, 3108172), (19, 1635880), (20, 1554086), (38, 817940), (40, 777043), (76, 408970), (95, 327176), (152, 204485), (190, 163588), (380, 81794), (760, 40897)]