20807521080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1\times {\mathrm{2389}}^1$

素因数の和:2985

約数の個数: 128

約数和(自身を含む): 62950305600

約数和(自身を除く): 42142784520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 401, 543, 724, 802, 905, 1086, 1203, 1448, 1604, 1810, 2005, 2172, 2389, 2406, 2715, 3208, 3620, 4010, 4344, 4778, 4812, 5430, 6015, 7167, 7240, 8020, 9556, 9624, 10860, 11945, 12030, 14334, 16040, 19112, 21720, 23890, 24060, 28668, 35835, 47780, 48120, 57336, 71670, 72581, 95560, 143340, 145162, 217743, 286680, 290324, 362905, 432409, 435486, 580648, 725810, 864818, 870972, 957989, 1088715, 1297227, 1451620, 1729636, 1741944, 1915978, 2162045, 2177430, 2594454, 2873967, 2903240, 3459272, 3831956, 4324090, 4354860, 4789945, 5188908, 5747934, 6486135, 7663912, 8648180, 8709720, 9579890, 10377816, 11495868, 12972270, 14369835, 17296360, 19159780, 22991736, 25944540, 28739670, 38319560, 51889080, 57479340, 114958680, 173396009, 346792018, 520188027, 693584036, 866980045, 1040376054, 1387168072, 1733960090, 2080752108, 2600940135, 3467920180, 4161504216, 5201880270, 6935840360, 10403760540, 20807521080]

約数ペア:

[(1, 20807521080), (2, 10403760540), (3, 6935840360), (4, 5201880270), (5, 4161504216), (6, 3467920180), (8, 2600940135), (10, 2080752108), (12, 1733960090), (15, 1387168072), (20, 1040376054), (24, 866980045), (30, 693584036), (40, 520188027), (60, 346792018), (120, 173396009), (181, 114958680), (362, 57479340), (401, 51889080), (543, 38319560), (724, 28739670), (802, 25944540), (905, 22991736), (1086, 19159780), (1203, 17296360), (1448, 14369835), (1604, 12972270), (1810, 11495868), (2005, 10377816), (2172, 9579890), (2389, 8709720), (2406, 8648180), (2715, 7663912), (3208, 6486135), (3620, 5747934), (4010, 5188908), (4344, 4789945), (4778, 4354860), (4812, 4324090), (5430, 3831956), (6015, 3459272), (7167, 2903240), (7240, 2873967), (8020, 2594454), (9556, 2177430), (9624, 2162045), (10860, 1915978), (11945, 1741944), (12030, 1729636), (14334, 1451620), (16040, 1297227), (19112, 1088715), (21720, 957989), (23890, 870972), (24060, 864818), (28668, 725810), (35835, 580648), (47780, 435486), (48120, 432409), (57336, 362905), (71670, 290324), (72581, 286680), (95560, 217743), (143340, 145162)]