320304880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{571973}}^1$

素因数の和:571993

約数の個数: 40

約数和(自身を含む): 851097312

約数和(自身を除く): 530792432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 571973, 1143946, 2287892, 2859865, 4003811, 4575784, 5719730, 8007622, 9151568, 11439460, 16015244, 20019055, 22878920, 32030488, 40038110, 45757840, 64060976, 80076220, 160152440, 320304880]

約数ペア:

[(1, 320304880), (2, 160152440), (4, 80076220), (5, 64060976), (7, 45757840), (8, 40038110), (10, 32030488), (14, 22878920), (16, 20019055), (20, 16015244), (28, 11439460), (35, 9151568), (40, 8007622), (56, 5719730), (70, 4575784), (80, 4003811), (112, 2859865), (140, 2287892), (280, 1143946), (560, 571973)]