820831920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{180007}}^1$

素因数の和:180042

約数の個数: 80

約数和(自身を含む): 2678519040

約数和(自身を除く): 1857687120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 180007, 360014, 540021, 720028, 900035, 1080042, 1440056, 1800070, 2160084, 2700105, 2880112, 3420133, 3600140, 4320168, 5400210, 6840266, 7200280, 8640336, 10260399, 10800420, 13680532, 14400560, 17100665, 20520798, 21600840, 27361064, 34201330, 41041596, 43201680, 51301995, 54722128, 68402660, 82083192, 102603990, 136805320, 164166384, 205207980, 273610640, 410415960, 820831920]

約数ペア:

[(1, 820831920), (2, 410415960), (3, 273610640), (4, 205207980), (5, 164166384), (6, 136805320), (8, 102603990), (10, 82083192), (12, 68402660), (15, 54722128), (16, 51301995), (19, 43201680), (20, 41041596), (24, 34201330), (30, 27361064), (38, 21600840), (40, 20520798), (48, 17100665), (57, 14400560), (60, 13680532), (76, 10800420), (80, 10260399), (95, 8640336), (114, 7200280), (120, 6840266), (152, 5400210), (190, 4320168), (228, 3600140), (240, 3420133), (285, 2880112), (304, 2700105), (380, 2160084), (456, 1800070), (570, 1440056), (760, 1080042), (912, 900035), (1140, 720028), (1520, 540021), (2280, 360014), (4560, 180007)]