209138940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1161883}}^1$

素因数の和:1161898

約数の個数: 36

約数和(自身を含む): 634388664

約数和(自身を除く): 425249724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1161883, 2323766, 3485649, 4647532, 5809415, 6971298, 10456947, 11618830, 13942596, 17428245, 20913894, 23237660, 34856490, 41827788, 52284735, 69712980, 104569470, 209138940]

約数ペア:

[(1, 209138940), (2, 104569470), (3, 69712980), (4, 52284735), (5, 41827788), (6, 34856490), (9, 23237660), (10, 20913894), (12, 17428245), (15, 13942596), (18, 11618830), (20, 10456947), (30, 6971298), (36, 5809415), (45, 4647532), (60, 3485649), (90, 2323766), (180, 1161883)]