641452

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 1326080

約数和(自身を除く): 684628

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 739, 868, 1478, 2956, 5173, 10346, 20692, 22909, 45818, 91636, 160363, 320726, 641452]

約数ペア:

[(1, 641452), (2, 320726), (4, 160363), (7, 91636), (14, 45818), (28, 22909), (31, 20692), (62, 10346), (124, 5173), (217, 2956), (434, 1478), (739, 868)]