640223998

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{3313}}^1\times {\mathrm{4201}}^1$

素因数の和:7539

約数の個数: 16

約数和(自身を含む): 1002630816

約数和(自身を除く): 362406818

約数列:

[1, 2, 23, 46, 3313, 4201, 6626, 8402, 76199, 96623, 152398, 193246, 13917913, 27835826, 320111999, 640223998]

約数ペア:

[(1, 640223998), (2, 320111999), (23, 27835826), (46, 13917913), (3313, 193246), (4201, 152398), (6626, 96623), (8402, 76199)]