3959540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 9104592

約数和(自身を除く): 5145052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 157, 194, 260, 314, 388, 485, 628, 785, 970, 1261, 1570, 1940, 2041, 2522, 3140, 4082, 5044, 6305, 8164, 10205, 12610, 15229, 20410, 25220, 30458, 40820, 60916, 76145, 152290, 197977, 304580, 395954, 791908, 989885, 1979770, 3959540]

約数ペア:

[(1, 3959540), (2, 1979770), (4, 989885), (5, 791908), (10, 395954), (13, 304580), (20, 197977), (26, 152290), (52, 76145), (65, 60916), (97, 40820), (130, 30458), (157, 25220), (194, 20410), (260, 15229), (314, 12610), (388, 10205), (485, 8164), (628, 6305), (785, 5044), (970, 4082), (1261, 3140), (1570, 2522), (1940, 2041)]