2008302080

素因数分解:

$2^9\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1787}}^1$

素因数の和:2249

約数の個数: 80

約数和(自身を含む): 4828887360

約数和(自身を除く): 2820585280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 439, 512, 640, 878, 1280, 1756, 1787, 2195, 2560, 3512, 3574, 4390, 7024, 7148, 8780, 8935, 14048, 14296, 17560, 17870, 28096, 28592, 35120, 35740, 56192, 57184, 70240, 71480, 112384, 114368, 140480, 142960, 224768, 228736, 280960, 285920, 457472, 561920, 571840, 784493, 914944, 1123840, 1143680, 1568986, 2287360, 3137972, 3922465, 4574720, 6275944, 7844930, 12551888, 15689860, 25103776, 31379720, 50207552, 62759440, 100415104, 125518880, 200830208, 251037760, 401660416, 502075520, 1004151040, 2008302080]

約数ペア:

[(1, 2008302080), (2, 1004151040), (4, 502075520), (5, 401660416), (8, 251037760), (10, 200830208), (16, 125518880), (20, 100415104), (32, 62759440), (40, 50207552), (64, 31379720), (80, 25103776), (128, 15689860), (160, 12551888), (256, 7844930), (320, 6275944), (439, 4574720), (512, 3922465), (640, 3137972), (878, 2287360), (1280, 1568986), (1756, 1143680), (1787, 1123840), (2195, 914944), (2560, 784493), (3512, 571840), (3574, 561920), (4390, 457472), (7024, 285920), (7148, 280960), (8780, 228736), (8935, 224768), (14048, 142960), (14296, 140480), (17560, 114368), (17870, 112384), (28096, 71480), (28592, 70240), (35120, 57184), (35740, 56192)]