1812980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 4327680

約数和(自身を除く): 2514700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 367, 380, 494, 734, 988, 1235, 1468, 1835, 2470, 3670, 4771, 4940, 6973, 7340, 9542, 13946, 19084, 23855, 27892, 34865, 47710, 69730, 90649, 95420, 139460, 181298, 362596, 453245, 906490, 1812980]

約数ペア:

[(1, 1812980), (2, 906490), (4, 453245), (5, 362596), (10, 181298), (13, 139460), (19, 95420), (20, 90649), (26, 69730), (38, 47710), (52, 34865), (65, 27892), (76, 23855), (95, 19084), (130, 13946), (190, 9542), (247, 7340), (260, 6973), (367, 4940), (380, 4771), (494, 3670), (734, 2470), (988, 1835), (1235, 1468)]