19461440

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1075

約数の個数: 56

約数和(自身を含む): 47149512

約数和(自身を除く): 27688072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 997, 1220, 1952, 1994, 2440, 3904, 3988, 4880, 4985, 7976, 9760, 9970, 15952, 19520, 19940, 31904, 39880, 60817, 63808, 79760, 121634, 159520, 243268, 304085, 319040, 486536, 608170, 973072, 1216340, 1946144, 2432680, 3892288, 4865360, 9730720, 19461440]

約数ペア:

[(1, 19461440), (2, 9730720), (4, 4865360), (5, 3892288), (8, 2432680), (10, 1946144), (16, 1216340), (20, 973072), (32, 608170), (40, 486536), (61, 319040), (64, 304085), (80, 243268), (122, 159520), (160, 121634), (244, 79760), (305, 63808), (320, 60817), (488, 39880), (610, 31904), (976, 19940), (997, 19520), (1220, 15952), (1952, 9970), (1994, 9760), (2440, 7976), (3904, 4985), (3988, 4880)]