638518080

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{665123}}^1$

素因数の和:665143

約数の個数: 56

約数和(自身を含む): 2027297952

約数和(自身を除く): 1388779872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 665123, 1330246, 1995369, 2660492, 3325615, 3990738, 5320984, 6651230, 7981476, 9976845, 10641968, 13302460, 15962952, 19953690, 21283936, 26604920, 31925904, 39907380, 42567872, 53209840, 63851808, 79814760, 106419680, 127703616, 159629520, 212839360, 319259040, 638518080]

約数ペア:

[(1, 638518080), (2, 319259040), (3, 212839360), (4, 159629520), (5, 127703616), (6, 106419680), (8, 79814760), (10, 63851808), (12, 53209840), (15, 42567872), (16, 39907380), (20, 31925904), (24, 26604920), (30, 21283936), (32, 19953690), (40, 15962952), (48, 13302460), (60, 10641968), (64, 9976845), (80, 7981476), (96, 6651230), (120, 5320984), (160, 3990738), (192, 3325615), (240, 2660492), (320, 1995369), (480, 1330246), (960, 665123)]