78671120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89399}}^1$

素因数の和:89423

約数の個数: 40

約数和(自身を含む): 199540800

約数和(自身を除く): 120869680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 89399, 178798, 357596, 446995, 715192, 893990, 983389, 1430384, 1787980, 1966778, 3575960, 3933556, 4916945, 7151920, 7867112, 9833890, 15734224, 19667780, 39335560, 78671120]

約数ペア:

[(1, 78671120), (2, 39335560), (4, 19667780), (5, 15734224), (8, 9833890), (10, 7867112), (11, 7151920), (16, 4916945), (20, 3933556), (22, 3575960), (40, 1966778), (44, 1787980), (55, 1430384), (80, 983389), (88, 893990), (110, 715192), (176, 446995), (220, 357596), (440, 178798), (880, 89399)]