30784880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{54973}}^1$

素因数の和:54993

約数の個数: 40

約数和(自身を含む): 81801312

約数和(自身を除く): 51016432

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 54973, 109946, 219892, 274865, 384811, 439784, 549730, 769622, 879568, 1099460, 1539244, 1924055, 2198920, 3078488, 3848110, 4397840, 6156976, 7696220, 15392440, 30784880]

約数ペア:

[(1, 30784880), (2, 15392440), (4, 7696220), (5, 6156976), (7, 4397840), (8, 3848110), (10, 3078488), (14, 2198920), (16, 1924055), (20, 1539244), (28, 1099460), (35, 879568), (40, 769622), (56, 549730), (70, 439784), (80, 384811), (112, 274865), (140, 219892), (280, 109946), (560, 54973)]