390513280

素因数分解:

$2^7\times 5^1\times {\mathrm{631}}^1\times {\mathrm{967}}^1$

素因数の和:1617

約数の個数: 64

約数和(自身を含む): 936017280

約数和(自身を除く): 545504000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 631, 640, 967, 1262, 1934, 2524, 3155, 3868, 4835, 5048, 6310, 7736, 9670, 10096, 12620, 15472, 19340, 20192, 25240, 30944, 38680, 40384, 50480, 61888, 77360, 80768, 100960, 123776, 154720, 201920, 309440, 403840, 610177, 618880, 1220354, 2440708, 3050885, 4881416, 6101770, 9762832, 12203540, 19525664, 24407080, 39051328, 48814160, 78102656, 97628320, 195256640, 390513280]

約数ペア:

[(1, 390513280), (2, 195256640), (4, 97628320), (5, 78102656), (8, 48814160), (10, 39051328), (16, 24407080), (20, 19525664), (32, 12203540), (40, 9762832), (64, 6101770), (80, 4881416), (128, 3050885), (160, 2440708), (320, 1220354), (631, 618880), (640, 610177), (967, 403840), (1262, 309440), (1934, 201920), (2524, 154720), (3155, 123776), (3868, 100960), (4835, 80768), (5048, 77360), (6310, 61888), (7736, 50480), (9670, 40384), (10096, 38680), (12620, 30944), (15472, 25240), (19340, 20192)]