640224722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{163573}}^1$

素因数の和:163697

約数の個数: 16

約数和(自身を含む): 1020701760

約数和(自身を除く): 380477038

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 163573, 327146, 3107887, 6215774, 16848019, 33696038, 320112361, 640224722]

約数ペア:

[(1, 640224722), (2, 320112361), (19, 33696038), (38, 16848019), (103, 6215774), (206, 3107887), (1957, 327146), (3914, 163573)]