18011890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{397}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 35103600

約数和(自身を除く): 17091710

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 349, 397, 698, 794, 1745, 1985, 3490, 3970, 4537, 5161, 9074, 10322, 22685, 25805, 45370, 51610, 138553, 277106, 692765, 1385530, 1801189, 3602378, 9005945, 18011890]

約数ペア:

[(1, 18011890), (2, 9005945), (5, 3602378), (10, 1801189), (13, 1385530), (26, 692765), (65, 277106), (130, 138553), (349, 51610), (397, 45370), (698, 25805), (794, 22685), (1745, 10322), (1985, 9074), (3490, 5161), (3970, 4537)]