397443820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{1777}}^1$

素因数の和:2050

約数の個数: 48

約数和(自身を含む): 854890848

約数和(自身を除く): 457447028

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 211, 212, 265, 422, 530, 844, 1055, 1060, 1777, 2110, 3554, 4220, 7108, 8885, 11183, 17770, 22366, 35540, 44732, 55915, 94181, 111830, 188362, 223660, 374947, 376724, 470905, 749894, 941810, 1499788, 1874735, 1883620, 3749470, 7498940, 19872191, 39744382, 79488764, 99360955, 198721910, 397443820]

約数ペア:

[(1, 397443820), (2, 198721910), (4, 99360955), (5, 79488764), (10, 39744382), (20, 19872191), (53, 7498940), (106, 3749470), (211, 1883620), (212, 1874735), (265, 1499788), (422, 941810), (530, 749894), (844, 470905), (1055, 376724), (1060, 374947), (1777, 223660), (2110, 188362), (3554, 111830), (4220, 94181), (7108, 55915), (8885, 44732), (11183, 35540), (17770, 22366)]