278967388

素因数分解:

$2^2\times 7^4\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:1000

約数の個数: 60

約数和(自身を含む): 588523712

約数和(自身を除く): 309556324

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 98, 124, 196, 217, 343, 434, 686, 868, 937, 1372, 1519, 1874, 2401, 3038, 3748, 4802, 6076, 6559, 9604, 10633, 13118, 21266, 26236, 29047, 42532, 45913, 58094, 74431, 91826, 116188, 148862, 183652, 203329, 297724, 321391, 406658, 642782, 813316, 1285564, 1423303, 2249737, 2846606, 4499474, 5693212, 8998948, 9963121, 19926242, 39852484, 69741847, 139483694, 278967388]

約数ペア:

[(1, 278967388), (2, 139483694), (4, 69741847), (7, 39852484), (14, 19926242), (28, 9963121), (31, 8998948), (49, 5693212), (62, 4499474), (98, 2846606), (124, 2249737), (196, 1423303), (217, 1285564), (343, 813316), (434, 642782), (686, 406658), (868, 321391), (937, 297724), (1372, 203329), (1519, 183652), (1874, 148862), (2401, 116188), (3038, 91826), (3748, 74431), (4802, 58094), (6076, 45913), (6559, 42532), (9604, 29047), (10633, 26236), (13118, 21266)]