198405280

素因数分解:

$2^5\times 5^1\times {\mathrm{523}}^1\times {\mathrm{2371}}^1$

素因数の和:2909

約数の個数: 48

約数和(自身を含む): 469826784

約数和(自身を除く): 271421504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 523, 1046, 2092, 2371, 2615, 4184, 4742, 5230, 8368, 9484, 10460, 11855, 16736, 18968, 20920, 23710, 37936, 41840, 47420, 75872, 83680, 94840, 189680, 379360, 1240033, 2480066, 4960132, 6200165, 9920264, 12400330, 19840528, 24800660, 39681056, 49601320, 99202640, 198405280]

約数ペア:

[(1, 198405280), (2, 99202640), (4, 49601320), (5, 39681056), (8, 24800660), (10, 19840528), (16, 12400330), (20, 9920264), (32, 6200165), (40, 4960132), (80, 2480066), (160, 1240033), (523, 379360), (1046, 189680), (2092, 94840), (2371, 83680), (2615, 75872), (4184, 47420), (4742, 41840), (5230, 37936), (8368, 23710), (9484, 20920), (10460, 18968), (11855, 16736)]