12660440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 31116960

約数和(自身を除く): 18456520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 251, 260, 388, 485, 502, 520, 776, 970, 1004, 1255, 1261, 1940, 2008, 2510, 2522, 3263, 3880, 5020, 5044, 6305, 6526, 10040, 10088, 12610, 13052, 16315, 24347, 25220, 26104, 32630, 48694, 50440, 65260, 97388, 121735, 130520, 194776, 243470, 316511, 486940, 633022, 973880, 1266044, 1582555, 2532088, 3165110, 6330220, 12660440]

約数ペア:

[(1, 12660440), (2, 6330220), (4, 3165110), (5, 2532088), (8, 1582555), (10, 1266044), (13, 973880), (20, 633022), (26, 486940), (40, 316511), (52, 243470), (65, 194776), (97, 130520), (104, 121735), (130, 97388), (194, 65260), (251, 50440), (260, 48694), (388, 32630), (485, 26104), (502, 25220), (520, 24347), (776, 16315), (970, 13052), (1004, 12610), (1255, 10088), (1261, 10040), (1940, 6526), (2008, 6305), (2510, 5044), (2522, 5020), (3263, 3880)]