28380520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101359}}^1$

素因数の和:101377

約数の個数: 32

約数和(自身を含む): 72979200

約数和(自身を除く): 44598680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 101359, 202718, 405436, 506795, 709513, 810872, 1013590, 1419026, 2027180, 2838052, 3547565, 4054360, 5676104, 7095130, 14190260, 28380520]

約数ペア:

[(1, 28380520), (2, 14190260), (4, 7095130), (5, 5676104), (7, 4054360), (8, 3547565), (10, 2838052), (14, 2027180), (20, 1419026), (28, 1013590), (35, 810872), (40, 709513), (56, 506795), (70, 405436), (140, 202718), (280, 101359)]