31410520

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9461}}^1$

素因数の和:9555

約数の個数: 32

約数和(自身を含む): 71532720

約数和(自身を除く): 40122200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 9461, 18922, 37844, 47305, 75688, 94610, 189220, 378440, 785263, 1570526, 3141052, 3926315, 6282104, 7852630, 15705260, 31410520]

約数ペア:

[(1, 31410520), (2, 15705260), (4, 7852630), (5, 6282104), (8, 3926315), (10, 3141052), (20, 1570526), (40, 785263), (83, 378440), (166, 189220), (332, 94610), (415, 75688), (664, 47305), (830, 37844), (1660, 18922), (3320, 9461)]