209469440

素因数分解:

$2^{14}\times 5^1\times {\mathrm{2557}}^1$

素因数の和:2590

約数の個数: 60

約数和(自身を含む): 502907916

約数和(自身を除く): 293438476

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2557, 2560, 4096, 5114, 5120, 8192, 10228, 10240, 12785, 16384, 20456, 20480, 25570, 40912, 40960, 51140, 81824, 81920, 102280, 163648, 204560, 327296, 409120, 654592, 818240, 1309184, 1636480, 2618368, 3272960, 5236736, 6545920, 10473472, 13091840, 20946944, 26183680, 41893888, 52367360, 104734720, 209469440]

約数ペア:

[(1, 209469440), (2, 104734720), (4, 52367360), (5, 41893888), (8, 26183680), (10, 20946944), (16, 13091840), (20, 10473472), (32, 6545920), (40, 5236736), (64, 3272960), (80, 2618368), (128, 1636480), (160, 1309184), (256, 818240), (320, 654592), (512, 409120), (640, 327296), (1024, 204560), (1280, 163648), (2048, 102280), (2557, 81920), (2560, 81824), (4096, 51140), (5114, 40960), (5120, 40912), (8192, 25570), (10228, 20480), (10240, 20456), (12785, 16384)]