218398180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10909}}^1$

素因数の和:10949

約数の個数: 96

約数和(自身を含む): 615847680

約数和(自身を除く): 397449500

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2860, 4004, 5005, 10010, 10909, 20020, 21818, 43636, 54545, 76363, 109090, 119999, 141817, 152726, 218180, 239998, 283634, 305452, 381815, 479996, 567268, 599995, 709085, 763630, 839993, 992719, 1199990, 1418170, 1527260, 1559987, 1679986, 1985438, 2399980, 2836340, 3119974, 3359972, 3970876, 4199965, 4963595, 6239948, 7799935, 8399930, 9927190, 10919909, 15599870, 16799860, 19854380, 21839818, 31199740, 43679636, 54599545, 109199090, 218398180]

約数ペア:

[(1, 218398180), (2, 109199090), (4, 54599545), (5, 43679636), (7, 31199740), (10, 21839818), (11, 19854380), (13, 16799860), (14, 15599870), (20, 10919909), (22, 9927190), (26, 8399930), (28, 7799935), (35, 6239948), (44, 4963595), (52, 4199965), (55, 3970876), (65, 3359972), (70, 3119974), (77, 2836340), (91, 2399980), (110, 1985438), (130, 1679986), (140, 1559987), (143, 1527260), (154, 1418170), (182, 1199990), (220, 992719), (260, 839993), (286, 763630), (308, 709085), (364, 599995), (385, 567268), (455, 479996), (572, 381815), (715, 305452), (770, 283634), (910, 239998), (1001, 218180), (1430, 152726), (1540, 141817), (1820, 119999), (2002, 109090), (2860, 76363), (4004, 54545), (5005, 43636), (10010, 21818), (10909, 20020)]