20199654500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{617}}^1\times {\mathrm{1597}}^1$

素因数の和:2274

約数の個数: 96

約数和(自身を含む): 45293635296

約数和(自身を除く): 25093980796

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 617, 820, 1025, 1234, 1597, 2050, 2468, 3085, 3194, 4100, 5125, 6170, 6388, 7985, 10250, 12340, 15425, 15970, 20500, 25297, 30850, 31940, 39925, 50594, 61700, 65477, 77125, 79850, 101188, 126485, 130954, 154250, 159700, 199625, 252970, 261908, 308500, 327385, 399250, 505940, 632425, 654770, 798500, 985349, 1264850, 1309540, 1636925, 1970698, 2529700, 3162125, 3273850, 3941396, 4926745, 6324250, 6547700, 8184625, 9853490, 12648500, 16369250, 19706980, 24633725, 32738500, 40399309, 49267450, 80798618, 98534900, 123168625, 161597236, 201996545, 246337250, 403993090, 492674500, 807986180, 1009982725, 2019965450, 4039930900, 5049913625, 10099827250, 20199654500]

約数ペア:

[(1, 20199654500), (2, 10099827250), (4, 5049913625), (5, 4039930900), (10, 2019965450), (20, 1009982725), (25, 807986180), (41, 492674500), (50, 403993090), (82, 246337250), (100, 201996545), (125, 161597236), (164, 123168625), (205, 98534900), (250, 80798618), (410, 49267450), (500, 40399309), (617, 32738500), (820, 24633725), (1025, 19706980), (1234, 16369250), (1597, 12648500), (2050, 9853490), (2468, 8184625), (3085, 6547700), (3194, 6324250), (4100, 4926745), (5125, 3941396), (6170, 3273850), (6388, 3162125), (7985, 2529700), (10250, 1970698), (12340, 1636925), (15425, 1309540), (15970, 1264850), (20500, 985349), (25297, 798500), (30850, 654770), (31940, 632425), (39925, 505940), (50594, 399250), (61700, 327385), (65477, 308500), (77125, 261908), (79850, 252970), (101188, 199625), (126485, 159700), (130954, 154250)]