257996800

素因数分解:

$2^{11}\times 5^2\times {\mathrm{5039}}^1$

素因数の和:5071

約数の個数: 72

約数和(自身を含む): 639802800

約数和(自身を除く): 381806000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2048, 2560, 3200, 5039, 5120, 6400, 10078, 10240, 12800, 20156, 25195, 25600, 40312, 50390, 51200, 80624, 100780, 125975, 161248, 201560, 251950, 322496, 403120, 503900, 644992, 806240, 1007800, 1289984, 1612480, 2015600, 2579968, 3224960, 4031200, 5159936, 6449920, 8062400, 10319872, 12899840, 16124800, 25799680, 32249600, 51599360, 64499200, 128998400, 257996800]

約数ペア:

[(1, 257996800), (2, 128998400), (4, 64499200), (5, 51599360), (8, 32249600), (10, 25799680), (16, 16124800), (20, 12899840), (25, 10319872), (32, 8062400), (40, 6449920), (50, 5159936), (64, 4031200), (80, 3224960), (100, 2579968), (128, 2015600), (160, 1612480), (200, 1289984), (256, 1007800), (320, 806240), (400, 644992), (512, 503900), (640, 403120), (800, 322496), (1024, 251950), (1280, 201560), (1600, 161248), (2048, 125975), (2560, 100780), (3200, 80624), (5039, 51200), (5120, 50390), (6400, 40312), (10078, 25600), (10240, 25195), (12800, 20156)]