386878720

素因数分解:

$2^8\times 5^1\times {\mathrm{479}}^1\times {\mathrm{631}}^1$

素因数の和:1131

約数の個数: 72

約数和(自身を含む): 930101760

約数和(自身を除く): 543223040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 479, 631, 640, 958, 1262, 1280, 1916, 2395, 2524, 3155, 3832, 4790, 5048, 6310, 7664, 9580, 10096, 12620, 15328, 19160, 20192, 25240, 30656, 38320, 40384, 50480, 61312, 76640, 80768, 100960, 122624, 153280, 161536, 201920, 302249, 306560, 403840, 604498, 613120, 807680, 1208996, 1511245, 2417992, 3022490, 4835984, 6044980, 9671968, 12089960, 19343936, 24179920, 38687872, 48359840, 77375744, 96719680, 193439360, 386878720]

約数ペア:

[(1, 386878720), (2, 193439360), (4, 96719680), (5, 77375744), (8, 48359840), (10, 38687872), (16, 24179920), (20, 19343936), (32, 12089960), (40, 9671968), (64, 6044980), (80, 4835984), (128, 3022490), (160, 2417992), (256, 1511245), (320, 1208996), (479, 807680), (631, 613120), (640, 604498), (958, 403840), (1262, 306560), (1280, 302249), (1916, 201920), (2395, 161536), (2524, 153280), (3155, 122624), (3832, 100960), (4790, 80768), (5048, 76640), (6310, 61312), (7664, 50480), (9580, 40384), (10096, 38320), (12620, 30656), (15328, 25240), (19160, 20192)]