20804590660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1217}}^1\times {\mathrm{5309}}^1$

素因数の和:6565

約数の個数: 96

約数和(自身を含む): 52154565120

約数和(自身を除く): 31349974460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1217, 1610, 2434, 3220, 4868, 5309, 6085, 8519, 10618, 12170, 17038, 21236, 24340, 26545, 27991, 34076, 37163, 42595, 53090, 55982, 74326, 85190, 106180, 111964, 122107, 139955, 148652, 170380, 185815, 195937, 244214, 279910, 371630, 391874, 488428, 559820, 610535, 743260, 783748, 854749, 979685, 1221070, 1709498, 1959370, 2442140, 3418996, 3918740, 4273745, 6461053, 8547490, 12922106, 17094980, 25844212, 32305265, 45227371, 64610530, 90454742, 129221060, 148604219, 180909484, 226136855, 297208438, 452273710, 594416876, 743021095, 904547420, 1040229533, 1486042190, 2080459066, 2972084380, 4160918132, 5201147665, 10402295330, 20804590660]

約数ペア:

[(1, 20804590660), (2, 10402295330), (4, 5201147665), (5, 4160918132), (7, 2972084380), (10, 2080459066), (14, 1486042190), (20, 1040229533), (23, 904547420), (28, 743021095), (35, 594416876), (46, 452273710), (70, 297208438), (92, 226136855), (115, 180909484), (140, 148604219), (161, 129221060), (230, 90454742), (322, 64610530), (460, 45227371), (644, 32305265), (805, 25844212), (1217, 17094980), (1610, 12922106), (2434, 8547490), (3220, 6461053), (4868, 4273745), (5309, 3918740), (6085, 3418996), (8519, 2442140), (10618, 1959370), (12170, 1709498), (17038, 1221070), (21236, 979685), (24340, 854749), (26545, 783748), (27991, 743260), (34076, 610535), (37163, 559820), (42595, 488428), (53090, 391874), (55982, 371630), (74326, 279910), (85190, 244214), (106180, 195937), (111964, 185815), (122107, 170380), (139955, 148652)]