16192940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 36664320

約数和(自身を除く): 20471380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 991, 1634, 1982, 3268, 3964, 4085, 4955, 8170, 9910, 16340, 18829, 19820, 37658, 42613, 75316, 85226, 94145, 170452, 188290, 213065, 376580, 426130, 809647, 852260, 1619294, 3238588, 4048235, 8096470, 16192940]

約数ペア:

[(1, 16192940), (2, 8096470), (4, 4048235), (5, 3238588), (10, 1619294), (19, 852260), (20, 809647), (38, 426130), (43, 376580), (76, 213065), (86, 188290), (95, 170452), (172, 94145), (190, 85226), (215, 75316), (380, 42613), (430, 37658), (817, 19820), (860, 18829), (991, 16340), (1634, 9910), (1982, 8170), (3268, 4955), (3964, 4085)]