28439460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22571}}^1$

素因数の和:22593

約数の個数: 72

約数和(自身を含む): 98594496

約数和(自身を除く): 70155036

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22571, 45142, 67713, 90284, 112855, 135426, 157997, 203139, 225710, 270852, 315994, 338565, 406278, 451420, 473991, 631988, 677130, 789985, 812556, 947982, 1015695, 1354260, 1421973, 1579970, 1895964, 2031390, 2369955, 2843946, 3159940, 4062780, 4739910, 5687892, 7109865, 9479820, 14219730, 28439460]

約数ペア:

[(1, 28439460), (2, 14219730), (3, 9479820), (4, 7109865), (5, 5687892), (6, 4739910), (7, 4062780), (9, 3159940), (10, 2843946), (12, 2369955), (14, 2031390), (15, 1895964), (18, 1579970), (20, 1421973), (21, 1354260), (28, 1015695), (30, 947982), (35, 812556), (36, 789985), (42, 677130), (45, 631988), (60, 473991), (63, 451420), (70, 406278), (84, 338565), (90, 315994), (105, 270852), (126, 225710), (140, 203139), (180, 157997), (210, 135426), (252, 112855), (315, 90284), (420, 67713), (630, 45142), (1260, 22571)]