981024340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2581643}}^1$

素因数の和:2581671

約数の個数: 24

約数和(自身を含む): 2168580960

約数和(自身を除く): 1187556620

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 2581643, 5163286, 10326572, 12908215, 25816430, 49051217, 51632860, 98102434, 196204868, 245256085, 490512170, 981024340]

約数ペア:

[(1, 981024340), (2, 490512170), (4, 245256085), (5, 196204868), (10, 98102434), (19, 51632860), (20, 49051217), (38, 25816430), (76, 12908215), (95, 10326572), (190, 5163286), (380, 2581643)]