19976075

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{709}}^1$

素因数の和:756

約数の個数: 36

約数和(自身を含む): 30109680

約数和(自身を除く): 10133605

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 709, 805, 1127, 1225, 3545, 4025, 4963, 5635, 16307, 17725, 24815, 28175, 34741, 81535, 114149, 124075, 173705, 407675, 570745, 799043, 868525, 2853725, 3995215, 19976075]

約数ペア:

[(1, 19976075), (5, 3995215), (7, 2853725), (23, 868525), (25, 799043), (35, 570745), (49, 407675), (115, 173705), (161, 124075), (175, 114149), (245, 81535), (575, 34741), (709, 28175), (805, 24815), (1127, 17725), (1225, 16307), (3545, 5635), (4025, 4963)]