25318640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16657}}^1$

素因数の和:16689

約数の個数: 40

約数和(自身を含む): 61967760

約数和(自身を除く): 36649120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 16657, 33314, 66628, 83285, 133256, 166570, 266512, 316483, 333140, 632966, 666280, 1265932, 1332560, 1582415, 2531864, 3164830, 5063728, 6329660, 12659320, 25318640]

約数ペア:

[(1, 25318640), (2, 12659320), (4, 6329660), (5, 5063728), (8, 3164830), (10, 2531864), (16, 1582415), (19, 1332560), (20, 1265932), (38, 666280), (40, 632966), (76, 333140), (80, 316483), (95, 266512), (152, 166570), (190, 133256), (304, 83285), (380, 66628), (760, 33314), (1520, 16657)]