199976380

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{12329}}^1$

素因数の和:13149

約数の個数: 24

約数和(自身を含む): 420502320

約数和(自身を除く): 220525940

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 8110, 12329, 16220, 24658, 49316, 61645, 123290, 246580, 9998819, 19997638, 39995276, 49994095, 99988190, 199976380]

約数ペア:

[(1, 199976380), (2, 99988190), (4, 49994095), (5, 39995276), (10, 19997638), (20, 9998819), (811, 246580), (1622, 123290), (3244, 61645), (4055, 49316), (8110, 24658), (12329, 16220)]