16327486720

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{411479}}^1$

素因数の和:411531

約数の個数: 72

約数和(自身を含む): 40371125760

約数和(自身を除く): 24043639040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 411479, 822958, 1645916, 2057395, 3291832, 4114790, 6583664, 8229580, 12755849, 13167328, 16459160, 25511698, 26334656, 32918320, 51023396, 52669312, 63779245, 65836640, 102046792, 105338624, 127558490, 131673280, 204093584, 255116980, 263346560, 408187168, 510233960, 526693120, 816374336, 1020467920, 1632748672, 2040935840, 3265497344, 4081871680, 8163743360, 16327486720]

約数ペア:

[(1, 16327486720), (2, 8163743360), (4, 4081871680), (5, 3265497344), (8, 2040935840), (10, 1632748672), (16, 1020467920), (20, 816374336), (31, 526693120), (32, 510233960), (40, 408187168), (62, 263346560), (64, 255116980), (80, 204093584), (124, 131673280), (128, 127558490), (155, 105338624), (160, 102046792), (248, 65836640), (256, 63779245), (310, 52669312), (320, 51023396), (496, 32918320), (620, 26334656), (640, 25511698), (992, 16459160), (1240, 13167328), (1280, 12755849), (1984, 8229580), (2480, 6583664), (3968, 4114790), (4960, 3291832), (7936, 2057395), (9920, 1645916), (19840, 822958), (39680, 411479)]