81992800

素因数分解:

$2^5\times 5^2\times {\mathrm{113}}^1\times {\mathrm{907}}^1$

素因数の和:1040

約数の個数: 72

約数和(自身を含む): 202158936

約数和(自身を除く): 120166136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 113, 160, 200, 226, 400, 452, 565, 800, 904, 907, 1130, 1808, 1814, 2260, 2825, 3616, 3628, 4520, 4535, 5650, 7256, 9040, 9070, 11300, 14512, 18080, 18140, 22600, 22675, 29024, 36280, 45200, 45350, 72560, 90400, 90700, 102491, 145120, 181400, 204982, 362800, 409964, 512455, 725600, 819928, 1024910, 1639856, 2049820, 2562275, 3279712, 4099640, 5124550, 8199280, 10249100, 16398560, 20498200, 40996400, 81992800]

約数ペア:

[(1, 81992800), (2, 40996400), (4, 20498200), (5, 16398560), (8, 10249100), (10, 8199280), (16, 5124550), (20, 4099640), (25, 3279712), (32, 2562275), (40, 2049820), (50, 1639856), (80, 1024910), (100, 819928), (113, 725600), (160, 512455), (200, 409964), (226, 362800), (400, 204982), (452, 181400), (565, 145120), (800, 102491), (904, 90700), (907, 90400), (1130, 72560), (1808, 45350), (1814, 45200), (2260, 36280), (2825, 29024), (3616, 22675), (3628, 22600), (4520, 18140), (4535, 18080), (5650, 14512), (7256, 11300), (9040, 9070)]