123957990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1999}}^1$

素因数の和:2078

約数の個数: 96

約数和(自身を含む): 353808000

約数和(自身を除く): 229850010

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 53, 65, 78, 90, 106, 117, 130, 159, 195, 234, 265, 318, 390, 477, 530, 585, 689, 795, 954, 1170, 1378, 1590, 1999, 2067, 2385, 3445, 3998, 4134, 4770, 5997, 6201, 6890, 9995, 10335, 11994, 12402, 17991, 19990, 20670, 25987, 29985, 31005, 35982, 51974, 59970, 62010, 77961, 89955, 105947, 129935, 155922, 179910, 211894, 233883, 259870, 317841, 389805, 467766, 529735, 635682, 779610, 953523, 1059470, 1169415, 1377311, 1589205, 1907046, 2338830, 2754622, 3178410, 4131933, 4767615, 6886555, 8263866, 9535230, 12395799, 13773110, 20659665, 24791598, 41319330, 61978995, 123957990]

約数ペア:

[(1, 123957990), (2, 61978995), (3, 41319330), (5, 24791598), (6, 20659665), (9, 13773110), (10, 12395799), (13, 9535230), (15, 8263866), (18, 6886555), (26, 4767615), (30, 4131933), (39, 3178410), (45, 2754622), (53, 2338830), (65, 1907046), (78, 1589205), (90, 1377311), (106, 1169415), (117, 1059470), (130, 953523), (159, 779610), (195, 635682), (234, 529735), (265, 467766), (318, 389805), (390, 317841), (477, 259870), (530, 233883), (585, 211894), (689, 179910), (795, 155922), (954, 129935), (1170, 105947), (1378, 89955), (1590, 77961), (1999, 62010), (2067, 59970), (2385, 51974), (3445, 35982), (3998, 31005), (4134, 29985), (4770, 25987), (5997, 20670), (6201, 19990), (6890, 17991), (9995, 12402), (10335, 11994)]