81836800

素因数分解:

$2^8\times 5^2\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:718

約数の個数: 108

約数和(自身を含む): 213536680

約数和(自身を除く): 131699880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 128, 152, 160, 190, 200, 256, 304, 320, 380, 400, 475, 608, 640, 673, 760, 800, 950, 1216, 1280, 1346, 1520, 1600, 1900, 2432, 2692, 3040, 3200, 3365, 3800, 4864, 5384, 6080, 6400, 6730, 7600, 10768, 12160, 12787, 13460, 15200, 16825, 21536, 24320, 25574, 26920, 30400, 33650, 43072, 51148, 53840, 60800, 63935, 67300, 86144, 102296, 107680, 121600, 127870, 134600, 172288, 204592, 215360, 255740, 269200, 319675, 409184, 430720, 511480, 538400, 639350, 818368, 861440, 1022960, 1076800, 1278700, 1636736, 2045920, 2153600, 2557400, 3273472, 4091840, 4307200, 5114800, 8183680, 10229600, 16367360, 20459200, 40918400, 81836800]

約数ペア:

[(1, 81836800), (2, 40918400), (4, 20459200), (5, 16367360), (8, 10229600), (10, 8183680), (16, 5114800), (19, 4307200), (20, 4091840), (25, 3273472), (32, 2557400), (38, 2153600), (40, 2045920), (50, 1636736), (64, 1278700), (76, 1076800), (80, 1022960), (95, 861440), (100, 818368), (128, 639350), (152, 538400), (160, 511480), (190, 430720), (200, 409184), (256, 319675), (304, 269200), (320, 255740), (380, 215360), (400, 204592), (475, 172288), (608, 134600), (640, 127870), (673, 121600), (760, 107680), (800, 102296), (950, 86144), (1216, 67300), (1280, 63935), (1346, 60800), (1520, 53840), (1600, 51148), (1900, 43072), (2432, 33650), (2692, 30400), (3040, 26920), (3200, 25574), (3365, 24320), (3800, 21536), (4864, 16825), (5384, 15200), (6080, 13460), (6400, 12787), (6730, 12160), (7600, 10768)]