12871720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:874

約数の個数: 64

約数和(自身を含む): 32037120

約数和(自身を除く): 19165400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 823, 920, 1564, 1646, 1955, 3128, 3292, 3910, 4115, 6584, 7820, 8230, 13991, 15640, 16460, 18929, 27982, 32920, 37858, 55964, 69955, 75716, 94645, 111928, 139910, 151432, 189290, 279820, 321793, 378580, 559640, 643586, 757160, 1287172, 1608965, 2574344, 3217930, 6435860, 12871720]

約数ペア:

[(1, 12871720), (2, 6435860), (4, 3217930), (5, 2574344), (8, 1608965), (10, 1287172), (17, 757160), (20, 643586), (23, 559640), (34, 378580), (40, 321793), (46, 279820), (68, 189290), (85, 151432), (92, 139910), (115, 111928), (136, 94645), (170, 75716), (184, 69955), (230, 55964), (340, 37858), (391, 32920), (460, 27982), (680, 18929), (782, 16460), (823, 15640), (920, 13991), (1564, 8230), (1646, 7820), (1955, 6584), (3128, 4115), (3292, 3910)]