128868420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 372556800

約数和(自身を除く): 243688380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 199, 215, 251, 258, 398, 430, 502, 516, 597, 645, 753, 796, 860, 995, 1004, 1194, 1255, 1290, 1506, 1990, 2388, 2510, 2580, 2985, 3012, 3765, 3980, 5020, 5970, 7530, 8557, 10793, 11940, 15060, 17114, 21586, 25671, 32379, 34228, 42785, 43172, 49949, 51342, 53965, 64758, 85570, 99898, 102684, 107930, 128355, 129516, 149847, 161895, 171140, 199796, 215860, 249745, 256710, 299694, 323790, 499490, 513420, 599388, 647580, 749235, 998980, 1498470, 2147807, 2996940, 4295614, 6443421, 8591228, 10739035, 12886842, 21478070, 25773684, 32217105, 42956140, 64434210, 128868420]

約数ペア:

[(1, 128868420), (2, 64434210), (3, 42956140), (4, 32217105), (5, 25773684), (6, 21478070), (10, 12886842), (12, 10739035), (15, 8591228), (20, 6443421), (30, 4295614), (43, 2996940), (60, 2147807), (86, 1498470), (129, 998980), (172, 749235), (199, 647580), (215, 599388), (251, 513420), (258, 499490), (398, 323790), (430, 299694), (502, 256710), (516, 249745), (597, 215860), (645, 199796), (753, 171140), (796, 161895), (860, 149847), (995, 129516), (1004, 128355), (1194, 107930), (1255, 102684), (1290, 99898), (1506, 85570), (1990, 64758), (2388, 53965), (2510, 51342), (2580, 49949), (2985, 43172), (3012, 42785), (3765, 34228), (3980, 32379), (5020, 25671), (5970, 21586), (7530, 17114), (8557, 15060), (10793, 11940)]