31379440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12653}}^1$

素因数の和:12697

約数の個数: 40

約数和(自身を含む): 75316608

約数和(自身を除く): 43937168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12653, 25306, 50612, 63265, 101224, 126530, 202448, 253060, 392243, 506120, 784486, 1012240, 1568972, 1961215, 3137944, 3922430, 6275888, 7844860, 15689720, 31379440]

約数ペア:

[(1, 31379440), (2, 15689720), (4, 7844860), (5, 6275888), (8, 3922430), (10, 3137944), (16, 1961215), (20, 1568972), (31, 1012240), (40, 784486), (62, 506120), (80, 392243), (124, 253060), (155, 202448), (248, 126530), (310, 101224), (496, 63265), (620, 50612), (1240, 25306), (2480, 12653)]